Bio- class sensor uses and effects in the food industry

The biosensor is a very special detection sensors , mainly for monitoring of vital objects and chemicals . In many areas of biosensors sideways must have the use of Cooling Temperature Sensor in which the food industry is also bound to use the . So biosensor uses its effect in the food industry , what does ? Following small to explain in detail . Biosensor analysis of the use of food containing food ingredients, food additives determination , harmful toxins and other fresh food analysis . A food ingredient analysisIn the food industry , the content of glucose is an important objective measure of the degree of sophistication and storing fruit of life expectancy . The enzyme electrode Crankshaft Position Sensor developed can be used to analyze wine, apple juice , jam and honey glucose . Other sugars, such as fructose , beer, malt wort , have sophisticated measuring sensor .Niculescu , who developed a biosensor called amps can be used to detect alcohol content drink guessed . Such a biosensor is buried in the alcohol dehydrogenase protein with polyethylene , and the share of the polymer is not the same enzyme can affect function of Crank Shaft Position Sensor . In the current experiments , the biosensor to measure alcohol limit for lnM.Analysis of two food additivesGenerally used in the food industry sulfite bleaching agents and preservatives , the enzyme electrode current- dioxide sulfite oxidase is selected item made ??active for the determination of the content of sulfite in foods , the linear measurement scale is 0 - quartic 6 mol / L. Again drinks , puddings , and other foods in the past sweeteners , Guibault other selected enzymes aspartate ammonia electrode contact measurement , the linear scale of minus five square -1xlO 2x10 negative cubic mol / L. Furthermore, the biosensor is also useful for measuring colors, and emulsifiers reported.3 pesticide residue analysisOver the years , everyone on pesticide residues in food increasingly focused questions , governments are also stepping on pesticide residues in food testing operations .Yamazaki , who sent a clear determination of the use of artificial enzyme organophosphorus insecticides amperometric biosensors , the use of organophosphorus pesticides hydrolase, nitro phenol and phenol detection limit diethyl seven negative side 10 mol, measured at 40 ℃ only 4min. Albareda such as glutaraldehyde cross-linking method using acetylcholine esterase fixed carbon paste electrode wire appearance, made ??a detectable concentration of negative 10 power of 10 negative paraoxon and 10 mol / L of 11 th mol / L of carbofuran biosensors can be used for the direct detection of residual water and juice samples of two pesticides.4 identification of microorganisms and toxinsThe presence of pathogenic microorganisms in food well-being of consumers will bring great harm , not only vegetarian food poisoning and toxicity of many varieties , most of them have carcinogenic , teratogenic, sudden changes in effect, therefore , strengthen the food pathogen microorganisms and toxins detection is crucial .Eating beef is very simple coli 0157.H7. Infection, and therefore , the demand for rapid detection and protection active approach to a class of E. coli bacteria 0157.H7 . Kramerr et al discuss fiber optic biosensor can detect within a few min food pathogens ( such as E. coli 0157.H7.), While the traditional approach needs a few d. This biosensor detection of pathogens from the pathogen from the sample obtained from scratch and make it independent of the growth in the medium altogether just 1d moment , while the traditional approach needs 4d.There is also a fast -active immune biosensor can be used to measure the milk residues of ivermectin , which is the reaction cytoplasmic genome, signal transmission through the optical system . The detection limit has been reached for 16.2ng/ml. One day be able to detect 20 milk samples .Detection five food freshnessFood industry, especially the freshness of food fish , fresh meat detect a primary objective is to assess the quality of the food . Volpe et al Yin oxidase yellow winded biological active materials, hydrogen peroxide electrode contact , through the determination of a past occurrence of fish muscle phosphate degradation process (IMP) muscle celecoxib (IIXR) and sub- yellow throat Yin (HX) concentration and then evaluate the freshness of the fish , the linear size of 5x10 -2x10 power of minus 10 th power minus 4 mol / L

As the car is inseparable from the sensor fish without water

As the car is inseparable from the sensor fish without water , some users may be asked to sensors in the car really so important? Today who say that we should first role in the automotive air flow Crankshaft Sensor Replacement .We know that the fuel injection of correct starter air - fuel ratio to ensure complete combustion of the fuel or the fuel consumption , it is necessary to monitor the air flow sensor . Air flow sensor has become one of the most important automotive sensors, it determines vehicle fuel mileage and exhaust emissions fuss important role , which monitors the amount of air entering through the inlet inside the boot , and convert it into voltage signal is then transmitted to the starter control module. Starter control module based on a signal transmitted in the past to determine how much fuel and air mixture required and the fueling system to inform automotive spark plug when the ignition for each cylinder .When the car accelerates air flow Engine Water Temperature Sensor response is a sign of stupidity wear or failure , but also that the starter does not inject fuel moderate , not too little is too much.By immediate fuel price, a functioning air flow sensor may reduce the frequency of operation of the pump with the frugal fuel quantity is worth the price of the sensor. Therefore, if the air flow sensor failure on the car is worth the change .

Smart grid development is inseparable from the current sensor security

Urban consumption continued to increase , the construction of the smart grid has become an inevitable trend , however, also need to get the power of security, this time showing the current sensor indispensable role . Also in the process of current Engine Water Temperature Sensor technology , and other aspects of the design and effectiveness of continuous improvement in the industry for more than the current flow measurement has a major role Fiber-optic current sensors for example, China launched a XDGDL-1 fiber-optic current sensor system to achieve a full digital line current sensing loop control system , with good stability and linearity and high sensitivity to meet a large range of process precision measurement requirements.Meanwhile , the system developed a field- winding telescopic structure, easy toinstall, can avoid the interference of stray magnetic fields , bus eccentricity measurement error is less than plus or minus 0.1 %, to achieve a high-precision signal conversion program for the rectifier control devices provide high-precision analog and digital communication interface standard .With the construction of the smart grid , the requirements for increasingly high current Engine Cooling Temperature Sensor , current sensor in the future to sensitivity, stability , and many other improvements , to move higher sensitivity , stronger immunity , lower power , smarter design, more compact , integrated and improved temperature stability direction, the better for the smart grid construction and upgrade services.

Soil temperature and humidity sensors for agricultural production

I do not know there is no species around greenhouses , greenhouses which are wall-mounted temperature sensor , use it to protect the greenhouses to maintain the temperature and humidity , is to allow the plants to grow better , but the temperature is not enough light use she also need suitable soil temperature and humidity , how to make sure the soil temperature and humidity it, look below . To measure soil temperature and humidity are generally using a plug-in temperature and humidity Engine Water Temperature Sensor , of course, this plug-in temperature and humidity sensors plug-in temperature and humidity sensors and we usually call on the industry is different . General soil temperature and humidity sensor is inserted relatively small, and temperature and humidity sensors used on different industries , general soil temperature and humidity sensors have several probes and probe length is not the same , so in order to better measure the different soil depths temperature and humidity . Soil temperature and humidity sensors are generally good corrosion resistance, often because of the need to insert into the soil , so the soil temperature and humidity Car Temperature Sensor probes generally use 316 L Specialty Steel . With the country now have the attention of agriculture , soil temperature and humidity will further be adopted to serve agriculture , of course, now the soil temperature and humidity sensor price is very expensive , generally require thousands or even tens of thousands of prices, so that only relatively large farms will be used , with the further development of sensor technology has been sent , soil temperature and humidity sensors new materials prices fell just around the corner , it is also bound to procure temperature and humidity sensors to small self-employed . Soil temperature and humidity will use its excellent performance to serve agricultural production .

Piezoelectric charge output accelerometer case

Piezoelectric accelerometer case charge output, can be used with any kind of a charge amplifier or a high-impedance input capture function has to match the pre-charge, charge amplifier type more, there is a single, multi-channel, integral, quasi-static, which should be selected according to the measurement requirements.There are exceptions, such as direct access to the output signal of the piezoelectric Engine Water Temperature Sensor has a high resistance properties of the three instruments (such as oscilloscopes), the same signal can be measured, but the impedance matching is not enough, only a qualitative understanding of the dynamic situation.ICP-type accelerometer built-in constant current adapter specifically, a single instrument available for constant current power supply and signal output more than just an acceleration car sensor. Part of the data collection instrument also comes with constant function directly with ICP sensor is equipped with.Common charge output sensors such as having a constant current output of data collection facilities, can be JM3861 constant fitness conditioner.Dual power acceleration sensor can provide dual power supply or acquisition with dual DC power supply.

Bimetal temperature sensor

Ferredoxin-type thermistor temperature sensor used to control the radiator cooling fan mounted on the radiator coolant circulation passage.
Maintenance Method Thermal ferrite Engine Water Temperature Sensor are as follows:
When the engine coolant temperature is higher than the predetermined value, if the radiator cooling fan is not running, you should check the radiator cooling fan circuit. First check the wiring connections, check for open circuit, short circuit, and the work of the Working fan relay and thermal ferrite temperature sensor.
Check Shaft Position Sensor thermal ferrite. The thermal ferrite temperature sensor placed in the container, connect the multimeter, while heating at work to check the sensor. Under normal conditions, when the coolant temperature is the predetermined temperature, the sensor is in a conducting state, the meter indicates 0 Ω. Coolant temperature is higher than the predetermined temperature, the sensor should be turned off (non-conducting sensor), the meter indicates the resistance ∞, if the number of the ferrite temperature thermal sensor is damaged and should be replaced.

Working principle of temperature sensors

Working principle of temperature sensors1, the thermal resistance: in accordance with the principles of the resistance wire of the temperature change
2, a thermocouple: a two conductor contact, the junction will have a stable electromotive force; same conductor ends at different temperatures, between the both ends of the electromotive force of a certain size
3, liquid thermometer: is the use of temperature-sensitive liquid thermal expansion of the principle of work
Most of Car Temperature Sensor resistive sensor,
That is, he himself is a resistor, as the temperature changes, the corresponding change in the resistance value, the resistance change of the desired temperature and Crank Shaft Position Sensor is a linear relationship, but which does not actually exist, the general performance to have good linearity within a certain temperature range performance. So when you want to select the temperature sensor for specific models of the original operating temperature range.

Position sensor is composed of three parts of a brushless DC motor system of

Position sensor is composed of three parts of a brushless DC motor system, but also a symbol from the brush DC motor. Its role is to position in the movement detection in the process of the main Car Temperature Sensorrotor, rotor magnet pole position signal into electrical signal, provide the information for the correct logic switching circuit, the turn-on and cut-off control them, which cause the current to the armature winding of the motor changes with the rotor position in order of commutation, car sensorform a rotating magnetic field the air gap step type, drive permanent magnet rotor rotating continuously. Application of position sensor, reduce noise, improve the service life of motor operation and performance of the motor, at the same time to reduce the energy dissipation effect.

Photoelectric type crankshaft position sensor is installed in the distributor

Photoelectric type crankshaft position sensor is installed on the distributor, which is composed of signal generator and signal light hole plate. The signal panel and electrical axis
To rotate together, there are 360Camshaft Position Sensor lithographic gap signal disc outer ring, signal generating crank angle 1 °; a 6 light holes spaced 60 DEG are uniformly distributed within the signal generated by, crank angle 120 °, 1 of which aperture is wide, to produce a signal relative to the TDC of cylinder 1. Signal generator is arranged on the shell of distributor, is composed of two light emitting diodes, two photosensitive diode and circuit. The light emitting diode is opposite to the photosensitive Crankshaft Positioning Sensordiode. Between the signal disc is positioned on the light emitting diode and photodiode, because the light hole signal disc, the light and shade alternating phenomenon. When the beam of light emitting diode according to the photodiode, photosensitive diode voltage; when the light emitting diode beam is blocking, photosensitive diode voltage of 0. The voltage signal shaping amplification circuit part, namely to electronic control unit for conveying the crank angle is 1 ° and 120 ° signal, the electronic control unit calculates the engine speed and crankshaft position according to the signal

How tension sensor wiring

How tension sensor wiring ?First determine the monitor 's power Engine Water Temperature Sensor interface positive power of negative , positive feedback , negative feedback , positive signal, negative , if it is 6-wire transmission control , measure Car Temperature Sensorresistance smallest two lines are the power positive feedback positive ; the power of negative , negative feedback , after receiving the sensor load monitor , measure another two line voltage ( mV ) signal is connected to monitor the positive and negative connection monitor signal negative ; if the value is four lines , you need to monitor power is and feedback is shorted , the power losses and negative feedback shorted with a multimeter measuring Shaft Position Sensor four lines, of which the largest two resistor values ​​is the power , the other two is the signal . Depending on the sensor origin, can lead color judgment, within the country manufacturers usually red for the power supply positive , black is negative power supply , green for the signal is positive, white is the signal negative ; Europe produces sensors generally green as the power supply positive , black for the power negative , white for the signal is positive, red is the signal negative .

Tension sensor performance indicators which

Tension sensor performance indicators which ?Mainly include linearity error , hysteresis error , repeatability error , creep , zero temperature characteristics and sensitivity temperature characteristics. Tension Crankshaft Positioning Sensorhas the advantage of high accuracy , wide measurement range , long life , simple structure , frequency response Coolant Temperature Sensor characteristics, and can work in harsh conditions , easy to realize miniaturization, holistic and species diversification . The disadvantage is that there is greater for large strain nonlinear , the output signal is weak , but you can take certain compensation measures. Therefore, it is widely used in automatic testing and control technology .

Proximity Sensor Selection Tips

Ground sensor applications has been particularly broad application of its model , different functions are also different, its main feature is the small size, easy toinstall, inexpensive , how do we determine what you want to do a proximity sensor to specifically look . First ,
the proximity sensor according to the measured object by selecting the material . If the required sensing distance is shorter , inductive proximity sensors can be easily and efficiently detect any type of metal objects. If the distance , you can use the photoelectric Camshaft Positioning Sensor. If the sensor is very far away , it is best to use on the radio or reflective photoelectric sensors. Secondly, since the capacitive proximity sensor can detect the material is very much, but the sensing distance corresponding to recently, and inductive proximity sensors similar . If you use a capacitiveCrankshaft Sensors , then the volume of the object to be detected can not be too small to meet the minimum sensing object of the sensor volume requirements. Ultrasound and diffuse proximity sensors can detect a wide range of materials , and detection distance is relatively long . However, in the detection of objects with irregular surfaces may cause problems . Finally , and more for the proximity sensor selection criteria , or to rely on the characteristics of the measured object , and to take
into account Crankshaft Positioning Sensor installation and environmental factors . Once all these issues are clear , then it can be selected from a number of sensors a suitable type. Understanding of the proximity sensor selection step that we can more quickly and accurately selected their own needs sensors. Of course, this is just a selection procedure , to treat specific problems but also specific coping

Proximity Sensor Selection Tips

Ground sensor applications has been particularly broad application of its model , different functions are also different, its main feature is the small size, easy to install, inexpensive , how do we determine what you want to do a proximity sensor to specifically look . First , the proximity sensor according to the measured object by selecting the material . If the required sensing distance is shorter , inductive proximity sensors can be easily and efficiently detect any type of metal objects. If the distance , you can use the photoelectric proximity sensors. If the sensor is very far away , it is best to use on the radio or reflective photoelectric sensors. Secondly, since the capacitive proximity sensor can detect the material is very much, but the sensing distance corresponding to recently, and inductive Camshaft Positioning Sensor similar . If you use a capacitive proximity sensor , then the volume of the object to be detected can not be too small to meet the minimum sensing object of the sensor volume requirements. Ultrasound and Engine Temperature Sensor can detect a wide range of materials , and detection distance is relatively long . However, in the detection of objectswith irregular surfaces may cause problems . Finally , and more for the Motor Temperature Sensor selection criteria , or to rely on the characteristics of the measured object , and to take into account the sensor installation and environmental factors . Once all these issues are clear , then it can be selected from a number of sensors a suitable type. Understanding of the proximity sensor selection step that we can more quickly and accurately selected their own
needs sensors. Of course, this is just a selection procedure , to treat specific problems but also specific coping .

Embedded temperature sensor to continuously improve the quality of military equipment

With the continuous improvement of the quality of military equipment , micro- computers, electronic circuit system more and more used equipment and technology fields. Therefore weaponry on the ambient temperature requirements are increasingly demanding , especially in combat conditions, the ambient temperature directly affects the combat capability of weapons and even weapons for their own safety , as the sensor technology in military equipment on the application, this problem will be resolved using the temperature sensor . Embedded temperature sensor is a set of embedded technologies and intelligent sensor technology withintegrated temperature sensor , not only can be done by conventional sensors for measuring the temperature of the measurement , and can use computer technology to collect raw data for processing , with a small, processing speed, high intelligence and high degree of integration flower is the trend of modern sensor . Camshaft Positioning Sensor are generally composed of three parts : the unit under test , sensitive unit and a data acquisition unit. In fact sensitive unit and a data acquisition and processing unit is an integral part of the smart sensor , a temperature sensor is embedded in Motor Position Sensor based on the increased functionality. With computer technology, sensor technology , measurement and control technology as well as the continuous development of embedded technology , embedded Coolant Temperature Sensor in military equipment will be more widely on the application , which will bring the overall strength of our army a qualitative leap , so that army in modern warfare handy , to defend territory.

How to install vibration velocity sensors

Speed ​​sensor vibration velocity sensor , the vibration velocity is typically used to measure the vibration of the bearing , but there are a few cases in the shaft for measuring vibrations. How to install vibration velocity sensors do ? In the measurement of vibration velocity , if sensor is installed incorrectly or is not securely installed , the measurement results will cause distortion due to vibration or damage caused by the speed sensor . So we have to consider a good choice for vibration velocity sensor is installed. When the speed sensor is used to measure shaft vibration when installed in the field are usually taken with the hand , sticky water plasticine magnetic disk fixed , bolted in several ways . In the temporary vibration measurement , in most cases, hand sensors way , this method measured flexible , easy to use , especially when the number of the lack of vibrationEngine Coolant Temperature Sensor interchangeability bad, has a special advantage ; And this the disadvantage is that the test measurement error is relatively large, and the intensity of work is relatively large . Current speed sensor when measuring the vibration velocity , usually people will use the Engine Coolant Temp Sensor fixing screws directly on the bearing , not only can reliably measure the bearing at the top of the vibration in three directions , but also can be measured in two directions perpendicular to the plane of vibration this method is the best way to install the measure . Also has a different installation methods , due to the installation of the various conditions to determine that we have a good effect on manually installing a useful little plasticine paste the speed sensor is also more convenient , you need to note that plasticine vibration Motor sensor can not be pasted into the vertical plane , and can only be fixed on a horizontal surface , as affected by temperature adhesive force , high temperature and the lower the adhesive strength will be significantly reduced, so it is not suitable for fixing the high temperature high pressure turbine rotor and reel measuring wheel speed sensor bearing ; winter cold start , the bearing temperature is too low and it is not used . There is a similar permanent magnet sucker fixed speed sensor mounting , etc., when we observe the installation follow the rules is to measure the needs , the need to make sense of your environment changes , so that the vibration velocity sensor mounted only purpose is to more has the effect of reducing unnecessary errors

What are the application Humidity Sensor

Humidity sensor is able to feel the water vapor content in the gas and used to convert the output signal of the sensor. With the realization of modernization , it is difficult to find a field unrelated to the humidity , the humidity sensor for measuring or controlling the relative humidity of the gas or absolute humidity, dew point and so on. Can indirectly control the temperature . Below its typical application for an introduction. ( A ) in the humidity measurement system application ( a ) below 70 ℃ ( normally at -40 ℃ above ) , if relatively clean environment , the use of polymer sensors, polluting the use of Camshaft Position Sensor ( heating washing of regeneration type ) . Heating the cleaning process as it exists , can not be continuously measured , and the large energy consumption (1 ~ 10W). However, long life, use the optional heated sensor clean cycle is longer , such as chlorine oxy apatite Auto Temperature Sensor , 2 ~ 3 months wash , in addition, internal heat than the outer heat and low energy consumption . ( 2 ) In the range of 70 ~ 100 ℃ measured humidity , washing with a heating ceramic sensor , to improve the accuracy of linear and temperature compensation. In order to achieve more accuracy will have with the microcomputer. In hot and humid heat required frequent cleaning, such as more than 80% RH , the need to 30S cleansing once daily, preferably equipped with automatic cleaning device heating . ( 3 ) in the range of 100 ~ 150 ℃ humidity measured in the international community , mostly made ​​of ceramicCooling Temperature Sensor temperature and humidity instrument . ( Two ) in the industrial automatic control application process in order to improve product quality and energy , usually in the product drying system , humidity control reactors , boilers, water vapor leak detection, integrated circuits or the head of the air-conditioning plant mostly using ceramic humidity sensor control ; variety of air conditioning systems, medical systems and humidity control can be polymeric or ceramic humidity sensor . ( Three ) in a steam leak detection systems used in thermal power stations , nuclear power plants, steam locomotives , boilers and other high temperature and pressure equipment , in order to prevent leakage, prevent accidents , humidity sensor can be used for leak detection . ( Four ) in the other systems used in home appliances dew condensation detection sensor can be used as tape recorders , car windows, condensation , frost detection. Humidity sensor applications driving the need for microelectronic circuit package failure mechanism analysis , due to IC failure and humidity have a great relationship .

How to correctly judge the photoelectric sensor output no signal

Photoelectric sensor is a photoelectric sensor element as a sensing element , widely used in the automation field . Photoelectric sensors for material handling, error detection , process manufacturing automation, object detection can also be used over long distances or fault is detected. Photoelectric sensors detect the distance of the object has a unique advantage , but in the specific use of the environment, there will be some technical problems , which we need methodical technical judgment. In the application of photoelectric sensors to detect objects in the distance , a lot of users will encounter problems when using photoelectric sensors to detect objects is no output signal after , making it impossible for subsequent data analysis. Most people see no signal sensor output may often be some wrong judgment , such as some people on the direct determination of Shaft Position Sensor bad reason. But the reason is not all like that, photoelectric sensor detects an object after no output , there may be many reasons , we need to do it step by step investigation . The first thing to consider is wiring or configuration problems . For beam photoelectric sensor must be cast by the light unit and a light unit used in combination with both ends requires power ; while retroreflective Engine Temperature Sensor probe and must be retroreflective sheeting used in combination ; same time, the user must provide a stable power supply to the sensor , if it is DC power supply , you must confirm the positive and negative , should the positive and negative connection error will cause the output signal is not . The reason analysis is to consider Camshaft Position Sensor itself , we also need to consider the problem is to detect the location of objects , if the detected object is not in the detection area , so that the detection is futile. Test object must be detected in the sensor area , that is, can sense the optical range. Secondly, we must consider the optical axis of the sensor there is no alignment problem , on the radio type of light-emitting portion and a light receiving unit must be aligned with the optical axis , the corresponding portion of the retroreflective type sensor must be aligned with the optical axis and the reflector . The same should also consider whether the detected object is the standard sensing object or minimum standard sensing object , object detection can not detect an object less than the minimum standard , thus avoiding lead shot , reflective not well detect transparent objects , like a reflection on detecting the color of objects is required, the deeper the color , the more recent detection distance . If the above conditions can be excluded to make it clear , we need to do is to detect environmental disturbances . Such as light intensity can not exceed the rated range ; if there is dust environment of the scene , we need our regular cleaning optical sensor probe surface ; or more sensors close fitting , mutual interference ; there is a relatively large impact that electrical interference , if surrounded power equipment , interference must have the appropriate anti-jamming measures . If you have done the above one by one investigation , these factors can be explicitly excluded or no signal output , it is recommended to return factory testing to determine .

The method of pressure sensors to achieve impact

Pressure sensors used in many bad environment , some of the bad environment may be more severe , such as pressure sensors need to measure the impact pressure , the measured impact pressure generally requires relatively high pressure sensor performance , we usually have several ways to measure the impact type pressure . The first method is to change the pressure transmitter chip , not an ordinary ceramic cores or diffused silicon core , but with strain gages , strain gauges is a strain on the DUT will be converted into an electrical signal of change sensitive device. It is a piezoresistive Camshaft Position Sensor of the main components . Resistance strain gauge is the most widely used metal resistance strain gauges and semiconductor strain gauges two kinds . Metal resistance strain gauges have filamentous strain gauge and the metal foil strain gages two kinds . The strain gauge is usually via a special adhesive binder tight mechanical strain is generated on the substrate , the force occurs when the substrate stress , the resistance strain gauge is generated with deformation, the resistance strain gauge is changed , so that the the voltage across the resistor changes . The strain gauge force generated when the change in resistance is usually small , it typically are composed of strain gage bridge , and through subsequent instrumentation amplifier is amplified , and then transmitted to the processing circuit . Strain gauge Auto Temperature Sensoris generally shock and impact resistance is better, but this sensor accuracy with their manufacturers . The second method is to use an ordinary ceramic Coolant Temperature Sensor or pressure sensor to measure diffusion silicon , but not be measured directly , but with the addition of a buffer tube , which also can measure the impact pressure . This method is economical , easy to install , so the application is very extensive. Regardless of the method is to measure the impact pressure sensor core body protection is not strong pressure washed out . Which method based on the specific use now have a bad environment and customer choice .

A brief description of the flange torque sensor

Torque sensor in various industries have a wide range of applications, widely used in motors , generators, gear, engine torque, speed and power testing. We all know that the torque sensor can generally be divided into static and dynamic torque sensor torque sensor , which is from the torque sensor measurement to points, from the torque sensor structure can be divided into flange torque sensors and illegal orchid torque sensors , torque flange which sensors can be divided into single and double flange flange torque sensor torque sensor . Single flange torque sensor suggests that it is the end of the torque sensor with flange -type structure , so easy to install and fixed sensors , single flange design is more convenient for on-site installation, ideal for static , non- continuous rotation torque force value measurements. Learn the single flange torque sensor on a good understanding of double flange torque Camshaft Position Sensor , torque sensors dual flange torque sensor is based on a single flange adds a flange structure , ie the torque sensor flange structure at both ends . Double flange torque sensors and single flange Auto Temperature Sensor as generally only suitable for static , non- continuous rotation torque force value measurements. Understanding of the structure ofAutomotive Temperature Sensors can be a good choice for our torque sensor , such as measuring the dynamic torque sensor flange structure we are not going to choose a torque sensor , select Static torque sensor go to consider when selecting a single flange or torque sensor double flange torque sensor , so that we can narrow our choices , better and faster we choose the suitable torque sensor .

Unique advantages photoelectric sensor

Photoelectric sensor applications more monitoring, response systems. Large aerospace military field , small -car electronic eye , etc., can be applied photoelectric sensors. In many industrial production line there are some application cases. For example, electronic eyes monitoring , digital rangefinder and counting ! Here to introduce you to the unique advantages of photoelectric sensors under what . 1 ) If long distance detection is retained on the radio more than 10m detection distance , etc., will be able to achieve other detection methods ( magnetic , ultrasonic , etc. ) can not be away from the detector . 2 ) restrictions on the detection of small objects caused due to the detected object shading and reflection for the detection principle , it is not like the proximity sensor will detect metal objects limited , it may be on the glass . Plastics timber of liquid , almost all objects detected . 3 ) Response time is short for high-speed light itself , and Crankshaft Positioning Sensor circuit constituted by the electronic components , it does not include mechanical working time , the response time is very short . 4 ) High resolution through advanced design techniques make the light beam is concentrated in a small spot , or by constructing a special light-receiving optical system to achieve high resolution . Small objects can also be detected and the position detection precision . 5 ) non-contact detection can be achieved without mechanical contact with can detect objects to achieve detection , it will not detect the object and sensor damage. Therefore, Car Temperature Sensor can be long-term use . 6 ) can be achieved by detecting the object forming the color determination of the light reflectivity and absorption of the light according to wavelength of light to be cast and the detected object color combinations vary . By utilizing this property , can detect the color of objects detected. 7 ) to facilitate adjustment of the projection type, visible light , flood light beams are visible to the eye , to facilitate adjustment of the position of the detected object .

Displacement sensor parameters

Displacement sensor parameters - displacement sensor is a relatively common sensors, displacement sensors is it ? Displacement sensor parameters What ? Displacement sensor , also known as linear sensor , it is divided into inductive displacement sensors , capacitive displacement sensor , optical displacement sensors , displacement sensors ultrasonic displacement sensors , hall-type displacement sensor . Inductive Coolant Temperature Sensor is a linear device belonging to metal induction , after power sensing face of the switch will generate an alternating magnetic field , when a metal object close to this sensor surface, the metal is generated eddy current draws oscillator the energy, so that the oscillator output amplitude linear attenuation , and then the change in the amount of attenuation to accomplish the purpose of non-contact sensing object . Main parameters Nominal resistance: potentiometer resistance indicated above . Repeatability: This parameter is as small as possible . Resolution: minimum displacement sensor displacement values ​​can feedback This parameter smaller the better. Conductive plastic Coolant Temperature Sensor resolution is infinitesimal . Permissible error: nominal resistance and actual resistance the difference with the percentage of the ratio of nominal resistance , said resistance deviation , which represents the precision potentiometer . General tolerances within ± 20% as long as it meets the requirements, because the general displacement sensor based on the partial pressure of ways to use the specific resistance of the size of the sensor data acquisition is not affected. Linearity: Linearity error This parameter is smaller and more good life: conductive plastic displacement sensor in 200 million times.

Sensors monitor the gas burner in the family of Application

Among the families of sensors are used with a temperature sensor , gas sensor , optical sensor , an ultrasonic sensor and an infrared sensor , etc. . Wherein the temperature sensor is the most common applications in the appliance , it is not only to bring to life a great convenience , but also to avoid fire , damage and other unexpected events. Recently published in the EU energy saving regulations , found that the use of new sensors control the burner , as many manufacturers of heating equipment upgrade of choice. Here's Crankshaft Positioning Sensorin the home under surveillance gas burning application . First, the gas and air mixture prior to combustion detection temperature , flow rate and composition of the combustible gas , so that the appliance can be calculated and the required heat supply air . Second, to detect possible reaction zone. Ions and some no-load number of atoms in the reaction can occur given product number . For example , if you know the volume fraction of oxygen , it is possible to infer the need to adjust the supply of gas or air . Third, the combustion state by detecting the carbon dioxide gas , carbon monoxide and nitrogen gas quantity and then OK. Being selected probe changes and changes in combustion characteristics of the relationship , thereby establishing a reliable control system. With the smart home slowly into family life , Car Temperature Sensor will need to be applied more and more , which is now a major sensor manufacturers in emerging markets . Vigorously develop the domestic sensors, to further improve the human home life, improve quality of life and taste , which is sensor manufacturers contribution to society .

A temperature sensor for detecting the temperature

Temperature sensors of various physical properties of the use of material with the temperature variation of the temperature sensor is converted to electricity . Temperature sensor is a core part of the temperature measuring instruments , a wide variety . Press the measurement can be divided into contact and non -contact two categories, in accordance with the characteristics of Cooling Temperature Sensor materials and electronic components are divided into two types of RTD and thermocouple . Temperature sensor is used to monitor the main machine which compensates for temperature or the temperature overheating protection, which in the working machine as the motor rotation and the movement of moving parts , the cutting generates heat , but the temperature distribution is uneven, will cause certain temperature , the thermal deformation of CNC machine tools , precision machined parts affected . To avoid these effects, Crankshaft Positioning Sensor will be installed on the machine , it can be detected that the real temperature value transmitted to the control system , the set point can be reached at the time to the control system of the machine temperature can be monitored and control .

A pressure sensor for detecting the pressure

Pressure sensors are most commonly used in industrial practice of a sensor , which are widely used in various industrial automation environment, involving water utilities , rail transportation, intelligent buildings, production automation , aerospace , military, petrochemical, oil, electric power, shipbuilding , machine tools , pipes and many other industries. The pressure Motor sensor is a Crankshaft Positioning Sensor is converted to an electrical signal on the machine, the machine adapted clamping force on the workpiece is monitored when the clamping force is lower than the set value when the work will lead to loose , the system sends an alarm , stop take the knife ; additional tools can detect changes in the cutting force . Moreover, it is in the lubrication system, hydraulic system , pneumatic system, for detecting the passage or the gas pressure in the oil or gas when the pressure is less than set when the set value , the shock will be activated and then sends signals to the control system to control it.

Fire gas sensor is booming

Sensor technology in the fire , the fire gas sensor technology started late, but rapid development , especially in the field of early fire alarm fires become more and more attention of researchers and has developed various types of fire, gas sensors and smart , composite gas Shaft Position Sensor. Currently, the fire continues to move gas sensor miniaturization , intelligent and multi-parameter , multi- criteria composite probing direction. With the new sensor technology and application of new materials and the development of microelectronics technology , fire, gas sensors becoming smaller , miniaturization . Resistance using nanoparticles composed of gas with the surrounding environment changes and changes in the characteristics of nanomaterials can be made ​​Crankshaft Position Sensor, toxic gases, flammable gas detection and quantitative measurement . Because nanomaterials crystal surface catalytic activity, as well as having a porous structure and other characteristics , the use of nano- crystalline film produced gas sensor has more choice and anti-interference, improving the accuracy of the fire alarm to reduce false positives. Meanwhile, the small size of nanomaterials , surface area is small , greatly reducing temperature , reducing power consumption, so that the fire gradually sophisticated gas sensor miniaturization Yin Nami , film and other new materials preparation technology successful application of integrated fire and gas sensors intelligence provides a good prerequisite. Automotive Temperature Sensorswill make full use of micromechanical and microelectronic technology, computer technology , signal processing technology, circuits and systems , sensor technology, bionics , neural networks, fuzzy theory and other subjects on the basis of integrated technology to develop. Able to simultaneously monitor multiple gas developed automatic intelligent digital Sensor Camshaft , will be the next major development in this field . Fire is an extremely complex physical and chemical processes in different environments and different resultant fires burning material , such as gas composition , smoke particle size , temperature distribution and spectral composition are different , only one fire detection parameters vagaries the various types of fire is bound to have great difficulty , it may cause a false positive signal non-fire dust , water, gas , smoke, etc. do not have the real fire parameters . Therefore, multi-parameter , multi- composite fire detection criterion can not only overcome the single fire caused by false positives parameter , you can also identify the non-fire signaling leads to false positives , the future is still hot fire gas sensors . In addition, multi-parameter , multi- criterion composite gas fire detection sensor also allows to reduce the time to achieve early warning .

Thin-film temperature sensor case studies

Film temperature sensor is a new type of temperature sensor , working principle and common thermal resistance, thermocouple the same , but it's hot junction thickness of only a few microns . Film Camshaft Position Sensor because of its small , short response time , high sensitivity, ease of integration , etc., suitable for measuring rapid changes in body temperature over time . Film thermocouple principle was first used by the Germans during the First World War made ​​P.Hackmann and developed a film thickness of only 2um thermocouple sensor for measuring bore bullet shot in the foot after a temperature change . Many scholars from around the world followed the film temperature sensor structure , method of preparation , performance and prospects a lot of research work , and has made encouraging progress in recent years, is widely used in internal combustion piston top surface of the combustion chamber wall and cutting tips and other transient temperature tests . Domestic Northwestern Polytechnical University, Li Fu-Guo Huang Lu , who developed a new right to film thermocouple Camshaft Positioning Sensor for measuring the work surface and the internal die temperature transients ; Xi'an Highway University, developed a money orchids, wall heat transfer for internal combustion engines process analysis of the film Cooling Temperature Sensor ; Dalian University of Technology precision & processing , Ministry of Education key Laboratory of Bao yuan et al study and produce for measuring cutting temperature NiCr / NiSi film thermocouples. Developed film temperature sensor is the key to solve the coating resistant , solid , impact and insulating layer between the issues and the difficulty of combining domestic and foreign scholars have done a lot of research on the coating process and produce the corresponding thin film sensors. So far, the researchers have developed a thin-film temperature sensor can be well applied in some situations , but its versatility deficiencies , and the cost is high ; simultaneously by technology and material constraints , sensor life are generally more shorter.

Affect the development of the four load cell competition in the industry

Weighing sensors with other sensors industries there is a fierce competition that has the image of brands, services and other civilized gentleman of the dispute , but also change the material for components, spell cost , disposable quality unscrupulous unfair price competition. The competition is mainly the following four points : 1, the price of some electronic weighing products is extremely low , some only one-tenth of the international market price , this factor determines the load cell is no room for maneuver on pricing , forcing production enterprises reducing their quotations and offers many free services , or forcing producers to maintain inventory levels , bear the risk and cost of inventories , the production company profits is therefore reduced ; 2 , misleading consumers, so many users have misunderstood the load cell stability and reliability targets. Some companies are semi-permanent part of the product , are IP67, IP68 sealing level of product protection can be stabilized for ten years at least mention , but will say that this was the vulnerability of the device under load frequently , allowing the user to accept this Shaft Position Sensor prices also accept quality of this product ; 3 , at the expense of product quality for the price , crazy reduce costs, using a variety of means to seize the market , for example, $ 3,000 per tonne instead of one million yuan 40Cr steel the 40CrNiMoA alloy steel load cell elastomer to do with about $ 5 instead of an ordinary strain gauge precision strain Crankshaft Position Sensor to do , without the formation of low-quality low-cost, make a profit ; 4 , lax management and supervision of legal metrology so that some of the production equipment is poor or lacking in personal and corporate load cell is relatively easy to enter the industry , leading to increase productivity and drive down prices, making formal corporate profits dropped significantly , and even non-profit discontinued , difficult. These victims are often Crankcase Position Sensor level of technology , process equipment is good, strict quality control , good after-sales service load cell business, the ultimate victims are the majority of users . On the surface, the price war in recent years is the direct cause of the load cell market crowded, some people and companies in order to profit , survival waged a last resort , and its essence is about leadership and management oversight authority , leadership and management control, supervision and inspection caused by lax .

Further accelerate the pace of intelligent sensors

Today, integrated smart sensor technology has made remarkable development , and domestic sensors have gradually opened up the field of smart sensor market . Now our high-performance multi- sensor micro-controller , along with digital and analog two kinds of output, and the specific requirements for some users , in the original products based on secondary development , and require a very short period , reaching the purpose for the user to save time , but also greatly improving efficiency. Has been widely applied to a variety of fine fields. Insiders said about the future , we can just move a finger, can only via mobile phone or computer and other electronic products can be realized on the control of household goods , to achieve truly automated home , while also through a variety of agricultural products,Crankshaft Position Sensortimely monitoring, for example, to effectively carry out irrigation and spraying , etc., in order to reduce costs and improve earnings. In addition , you can also wear a Camshaft Position Sensor body health data collection, protect people timely understanding of their own health . With intelligent Crankshaft Positioning Sensor , will people's lives changed dramatically , and can be widely applied to the sensor field , such as smart logistics, smart healthcare , smart home , intelligent transportation , industrial automation , environmental protection, financial services industry , fine agriculture, national defense and military , networking , and other areas was smart sensor provides a great market space for development .

Oxygen sensor works

Fast development of the automotive industry , automotive replacement is getting faster and faster , increasing the level of automobile manufacturing technology , more and more precision machining parts for automotive emissions requirements become more stringent , the Camshaft Position Sensor in the middle of vulnerable the impact of fuel combustion , the fuel quality requirements are also increasing. Oxygen sensors are used in automotive engine management system, by detecting the oxygen content in the exhaust gas , the probe results in the form of feedback signals to the engine management system, the detection results and the exhaust gas oxygen content was one relationship , the engine management system according to the feedback signal after calculation , analysis and judgment to issue directives to the actuator to complete a variety of actions , so that the engine can be in a variety of working conditions in order to work optimally . Sensor works: oxygen sensor sensitive components using its ceramic zirconia ceramic materials at high temperatures characteristic of oxygen pump oxygen sensing signal . Zirconia ceramic at a temperature and oxygen ions may be turned on , when the oxygen concentration on both sides there is a difference , will be based on the Nernst equation potential difference is generated . Air-fuel ratio when the engine is operating in the vicinity of λ = 1 (typically λ = 0.99-1.01), zirconium oxide ceramic will exhibit a significant change in the electric potential difference , therefore , the Engine Temp Sensorof this step- by sensing the change in the electric potential of the work of the engine the feedback control , which enters the engine when the oxygen-depleted or enriched provide basic response signal , indicating the engine air-fuel ratio control system will be adjusted to standard conditions . Cars generally need to install two oxygen sensors , catalytic systems were installed in the front and rear . Catalytic system is attached to the tip of the oxygen sensor for detecting oxygen concentration in exhaust gas , according to the level of oxygen concentration in the exhaust gas back to the gasoline engine , the gasoline engine according to Coolant Temperature Sensor feedback signal increases or decreases the air-fuel ratio , so that air-fuel ratio always in perfect combustion state λ = 1 nearby. Catalytic exhaust system of harmful gases such as CO, CH and NOx , etc. into harmless carbon dioxide, water and nitrogen , and finally confirmed through an exhaust gas oxygen sensor has been transformed completely .

Principle and Application of Gas Sensors

The so-called gas sensor is used to detect whether a certain area in the presence of a specific gas and / or capable of continuous measurement of gas component concentration of the instrument. In the coal mine , petroleum, chemical , municipal , medical , transportation , family and other security aspects , commonly used in the detection of combustible gas sensor , combustible , toxic gases or existence , or oxygen consumption and so on. In the electric power industry and other manufacturing fields, but also quantitative measurement of flue gas sensor used in the concentration of each component to determine the combustion of harmful gas emissions and the like. Field of environmental monitoring in the atmosphere , the use ofCrankshaft Position Sensor determine environmental pollution situation , it is very common. Classification of gas sensors from detecting the type of gas , the often divided into combustible gas sensor ( often using catalytic combustion , infrared, thermal conductivity , semiconductor type ) , toxic gas sensors ( generally using electrochemical , metal-semiconductor , photoionization , flame ionization type ), hazardous gas sensor ( often with infrared , ultraviolet , etc. ) , oxygen ( often using paramagnetic , zirconia ) and other Engine Coolant Temperature Sensor ; from the use of the instrument , into the portable and stationary ; obtained from the gas the way the sample is divided into diffuse ( i.e. sensor mounted directly on the object to be measured environment , the measured gas through natural diffusion in direct contact with Car Temperature Sensor element ) , suction ( suction pump is through the use of other means , to be tested gas is introduced into the sensor sensing element detection. based on the measured gas is diluted , can be subdivided into full suction and dilution type, etc. ) ; from the analysis of gaseous components , and is divided into a single formula ( only for specific gas detection ) and compound of formula ( composition for simultaneous detection of multiple gases ) ; press Sensor detection principle , be divided into thermal , electrochemical , magnetic , optical , semiconductor type , such as gas chromatography type .

Sensors on the device application in life

Appliance industry has been a hot industry , now more or less every household has a certain number of home appliances , we can say all of the appliances in both sensor applications, sensor devices are appliances must . People want to enjoy intelligent life, then smart appliances is definitely an important part , and the various types of sensors has become an important component of intelligent appliances . More and more vendors starting to focus Shaft Position Sensor technology in the home appliance products in the application , and actively promote such applications to meet the needs of consumers and enhance the user experience. In order to improve the safety performance of appliances , sensors are widely used, except in the rice cooker applications, also used in induction cooker and so on. The infrared Engine Coolant Temperature Sensor used in cooker , you can make sure no one stops cooking fried foods, or high-temperature reminder to further enhance security. In energy conservation, green low popular now , appliances save energy also become manufacturers and consumers attention. Relying on lower power rating values ​​to achieve the energy saving effect of the " hard energy" traditional way, consumers can not meet the application requirements, so the use of sensors to achieve the user to control the use of "soft energy" gradually born. If the air conditioning indoor unit is equipped with the infrared sensor , to obtain the interior region 752 of the thermal image , to analyze the position of the body , the body activity, floor / wall / ceiling / window position information and the room layout . According to the different areas where the person to adjust the temperature , and the remote control to emit energy saving tips and so on. Engine Water Temperature Sensor is widely used at present in the refrigerator , the refrigerator door switch to detect the state and frequency. And according to the user 's habits and trends to achieve the cooling suit every home run . Depending on the frequency of use to adjust the refrigerator and freezer for cooling , to meet the needs of user applications and also save energy. The foreseeable future sensor applications in white goods will be more, and achieve different new features. Sensors on the device in life will be more widely applied , with the development of sensors , appliances will be more intelligent, not only to avoid security risks but also to enable people to enjoy a comfortable life.

In the course of the humidity sensor has several issues deserve attention

In the course of the humidity sensor has the :Select the measurement range and weight, temperature , the choice of the humidity sensor must first determine the range of measurement. In addition to weather , research departments, to engage in temperature and humidity monitoring in general do not need all wet process (0-100% RH) measurements. In today's information age , Shaft Position Sensor technology and computer technology , automatic control technology closely integrated with . The purpose is to control measurement , measurement range and control of the use of collectively . Of course, do not need to engage in monitoring and control system applications are concerned, directly select universal moisture meter on it. Select the same measurement accuracy and measurement range , measurement accuracy of the sensor with the most important indicators. Each increase - percentage points. It is for the sensor to a higher level , or even on the next level . To achieve different accuracy because its manufacturing costs vary widely , the price is also very different. For example imports an inexpensive Engine Coolant Temperature Sensor only a few dollars, and one for the entire wet process of calibration and humidity sensors to a few hundred dollars , a difference of nearly a hundred times . Therefore, the user must be tailored , not the blind pursuit of "high, fine, sharp ." Manufacturers often give its humidity sensor segmentation accuracy . In case of low humidity segment ( 0 a 80% RH) was ± 2% RH, and the humidity segment (80-100% RH) was ± 4% RH. And this accuracy is at a specified temperature (such as 25 ℃) value. If used at different temperatures andCar Temperature Sensor. Its indication should also consider the impact of temperature drift . Is known , the relative humidity is a function of temperature , temperature seriously affecting the relative humidity within the specified space . Each change of temperature 0.1 ℃. Will generate 0.5% RH humidity change (error ) . If it is difficult to do using the occasion thermostat , the proposed high measuring precision is inappropriate. Because humidity variations with temperature drift suddenly uncertain , then talk about measuring precision will be moot . So first of all to control humidity temperature control is good , this is the large number of applications are often temperature and humidity - sensor integration and not simply because of the humidity sensor . In most cases, if there is no precise temperature control means , or a non- sealed space is measured , ± 5% RH of accuracy is sufficient . For applications requiring precise control of temperature and humidity of the local space , or need to keep track of changes in humidity recording of the occasion, and then use ± 3% RH. Above precision humidity sensor . And this corresponds to the temperature sensor. Its measurement accuracy ± 0.3 ℃ above shall be sufficient , at least ± 0.5 ℃ for . The accuracy better than ± 2% RH sensor calibration requirements but even the standard humidity generator is also difficult to do , not to mention the sensor itself .

Regardless of the vibration sensor is in the application of the test or have a key role

Regardless of the vibration sensor is in the application of the test or have a key role is an electromechanical conversion unit , we sometimes also called the vibration sensor transducer, the vibration pickup . The vibration sensor is not directly the original volume to be measured into a mechanical energy , but the original mechanical quantity to be measured as a vibration Automobile Temperature Sensor input, and receiving section to be received by the machine , form another for converting a mechanical quantity , and then finally by the electromechanical conversion section converts electricity . Therefore, performance of a sensor receiving portion by the mechanical and electrical converting portion determined performance . 1 , the relative mechanical principle due to mechanical movement is receiving physical movement simplest form , so people first thought is to use mechanical methods to measure vibration, thereby creating a mechanical vibrometer . The mechanical Motor Sensors receiver is built on the basis of this principle on . Relative type vibrometer working principle is the measurement receiver , the instrument does not move in a fixed bracket, make contact with the measured object vibrating rod in the same direction , and by the elastic force of the spring in contact with the surface of the measured object , when the object vibrates, the antenna rod to follow it with the movement , and to promote the movement of the tape recording pen depicted on the vibration displacement of the object with time variation curve can be calculated according to the recording of the displacement curve of the size and frequency parameters . 2 , the principle of inertia mechanical inertia receiving mechanical vibration vibrometer when vibrometer is directly fixed to the measured vibration measuring point on the object , when the measured vibration Engine Water Temperature Sensor housing with the movement of objects , by the elastic support of inertia mass relative motion to the housing , is mounted on the block and to record the recording pen can be mass element and the shell relative vibration displacement amplitude , and the use of inertial mass and the housing relative to the vibration displacement relationship can calculated absolute vibration measured object displacement waveforms . 3, the vibration sensor is an electromechanical conversion general principle , the vibration sensor to receive the mechanical principle , only the relative type, inertia type two, but in the electromechanical conversion , due to the different nature of the transformation methods and its wide range of application is extremely extensive. In modern vibration measurement sensors used , is not the traditional concept of separate mechanical measuring device , it is only the entire measurement system in a part of , and with the subsequent electronics are closely related. Since Camshaft Position Sensor different internal electromechanical transformation principle , the output power is also different . Some of the changes in the amount converted into mechanical force , the charge changes , some changes in the mechanical vibration is converted into resistors, inductors and other electrical parameters changes. Generally , the charge and can not be directly subsequent display, recording , analysis instruments accepted . Therefore, electromechanical transformation principle for different sensors must be accompanied by specially equipped measuring circuit . Measuring circuit is the role of Auto Temperature Sensor output power becomes final follow-up show , analytical instruments generally acceptable voltage signal . Therefore, the vibration sensor according to their function may have the following classification : according to the principle of mechanical Receive : Relative type, inertial ; according to the principle of electromechanical conversion : electric , piezoelectric , eddy current , inductive , capacitive, resistive, photoelectric ; measured by the amount of machinery : displacement sensor, speed sensor

Photoelectric sensor is used to detect the distance of the apparatus from the light source is a

Photoelectric sensor is used to detect the distance of the device , a by a light source, an optical path and the three kinds of photovoltaic element part , the following is a detailed description of the photoelectric sensor . A self-contained photoelectric sensors include optical and electronic products , you only need a power supply. The Cooling Temp Sensorsperforms its own modulation, demodulation, amplification, and output switch . Some independent sensors provide such options as built-in control timer or counter. As technology advances, independent photoelectric Crankshaft Positioning Sensor getting smaller. Remote photoelectric sensors for remote sensing or in hard to reach places, contains only one Coolant Temperature Sensor optical components. Power input circuit , amplified, and output switch is in a different location , usually in a control panel . This allows the sensor is very small , and controls are accessible , because they could be bigger. When space is limited or even hostile environment is too remote sensors, optical fiber may be used. Fiber is a passive mechanical sensing components. They can use two remote or separate sensors . They no electrical wiring and no moving parts, can be safely tube light harsh environments.

Rocket technology sensor applications

Rocket launch is like a dragon is never caught not come, in fact, on the rocket in order to ensure safe flight of astronauts to provide accurate input data , the rocket on the various types of sensors , converters play an important role in sensor in the end what kind of role play it , and today China sensors trading network came to tell you about it. Various types of Camshaft Position Sensor on the rocket , mostly installed inside the key parts of the rocket , they perceived the arrow on the physical changes responsible for the physical quantity conversion converter to achieve the transmission signal supplied to the control system of the rocket and ground control center as a basis to judge , like a change in both eyes fixed targets for the command center to provide a basis to predict . Speaking of rockets internal sensor , manifold variety. Working principle of a capacitive , resistive , optical type , indicators measured pressure, displacement , strain, physical monitoring the acceleration , position, temperature , noise, vibration , etc. aspects. Wide range of sensors in the rocket world, there are several categories is particularly important, it is a direct monitoring data reflect the status of the rocket is safe . Acceleration sensor lifesaving escape criterion for the rocket escape system provides important parameters , when the rocket a serious failure , endangering the safety of astronauts , it will show the acceleration deviation from the design value , the sensor will sense this change the first time , and issued signal initiates escape procedures to help astronauts quickly out of the woods . Using the system with level Crankshaft Positioning Sensor  for measuring the remaining amount of propellant level measurement , real time, continuously , accurately provide information on the remaining amount of liquid propellant , controls the engine adjusting valve or open or closed , monitoring the flow of propellant mixing ratio of the engine keep tank oxidant , the mass ratio of the combustion agent is within the optimal range . Vibration and noise is the rocket invisible killer , though does not seem to explode so violently cruel, but the astronauts of the body is also very large destructive . In order to ensure the rocket during flight vibration and noise generated by the human body can not exceed acceptable levels , improve ride comfort of astronauts , rockets also set up a special monitoring vibration and noise of Car Temperature Sensor. Rumbling avalanche of orange flame , daring and took away all eyes , a small Car Sensors on the huge rocket body seem insignificant , but they are protecting the safety of the astronauts unsung heroes in the thousands of degrees of broiled high stick to their posts , so vacated became an astronaut flying dragon tame car.

Piezoelectric ceramic ultrasonic sensor working principle and structural characteristics

Ultrasonic sensors are developed from the use of ultrasonic sensor characteristics , because of its reliable, easy to install, waterproof , launch angle is small, high sensitivity , are widely used in liquid level monitoring, robot collision avoidance , a variety of ultrasonic proximity switches, and burglar alarm and other related fields. As we all know , is the production of piezoelectric ceramic ultrasonic sensor probes commonly used materials . Here's a look at piezoelectric ceramic Automotive Temperature Sensors working principle and structural characteristics . When a voltage is applied to the piezoelectric ceramics , piezoelectric ceramics will change with voltage and frequency mechanical deformation . On the other hand , when the vibration of piezoelectric ceramics , an electrical charge is generated . Using this principle , when given by the two piezoelectric ceramic or a piezoelectric ceramic and a metal sheet having a vibrator, the bimorph element , applying an electrical signal , it will emit an ultrasonic vibration by bending . In contrast, when applied to the bimorph element ultrasonic vibration , it will generate an electrical signal. Because of these effects , it can be used as a piezoelectric ceramic ultrasonic sensor . The Car Temperature Sensor is a composite vibrator be flexibly fixed on the base . The compound of the resonator and the vibrator consists of a metal plate and a piezoelectric ceramic bimorph element consisting of a combination of the vibrator . Resonator flared aims to effectively radiate ultrasonic waves generated due to vibration , and the ultrasonic waves can be effectively central portion of the vibrator . Piezoelectric ceramic Cooling Temperature Sensor uses a point to note is that in the high- frequency probe , you must use the vertical thickness vibration mode piezoelectric ceramic . In this case , the acoustic impedance of piezoelectric ceramic matches with the air becomes very important . Because the acoustic impedance of the piezoelectric ceramic 105 acoustic impedance of air , which will cause the vibration of the piezoelectric ceramic significant loss of radiation on the surface , then you will need to adhere to a special material on the piezoelectric ceramic ultrasonic sensor , as acoustic matching layer , the air can be realized with acoustic impedance matched , so as to achieve the purpose of the measurement .

Capacitive Humidity Sensor

Capacitive humidity sensor directly sensing the relative humidity changes , the humidity changes into a change in capacitance , and then change in capacitance by the signal conditioning circuit is converted to a standard electrical signal supplied to the associated control or monitoring circuits. Capacitive humidity sensor features are: fast response, high linearity , low hysteresis and long-term stability and good , so applications are increasingly widespread . Capacitive relative humidity sensor usually consists of thermosetting polymers , three capacitor structure , platinum electrodes , as well as integrated signal conditioning circuit ( except for high-temperature applications ) and other components. As shown below, wherein the thermosetting polymer is the outermost layer of the sensor package is mainly for protection against dirt , dust, oil and other Mian override or enter into Camshaft Position Sensor , corrosion platinum electrode , affect the sensor response speed . The outer layer of the platinum electrode is filled with holes, make sure the air with water vapor quickly and smoothly into the internal sensor , speed sensor response speed and reduce the measured hysteresis. In practice , based on the affinity of vapor capacitive, resistive or conductive thin film as a humidity sensor is sensitive to humidity , but also on the temperature-sensitive , so in order to achieve accurate measurement , or wide temperature range , temperature compensation is not necessary small. To achieve temperature compensation, temperature measurements must be placed as close to the Shaft Position Sensor measurement environment, particularly humidity and temperature is calculated using the dew point , which is particularly important. Industrial humidity and dew point measuring apparatus is usually integrated in the sensor substrate opposite a 1000 ohm platinum RTD temperature sensor for temperature compensation. When the sensor sensing area surface temperature is below ambient dew point temperature , then the sensor sensing area surface condensation is easy , even if the surface temperature or sensor sensing area within the local temperature only briefly below ambient dew point temperature, the sensor has an internal or surface condensation may form , especially when the working environment humidity above 95 %, the temperature of the subtle fluctuations are likely to cause condensation . In order to avoid humidity and dew condensation on Crankshaft Positioning Sensor influence , there is usually some measures such as maintaining good air circulation to reduce temperature fluctuations ; add to the humidity sensor sintered stainless steel filter , a waterproof coating to further suppress the condensation of .