Three types of temperature sensor probe

Temperature sensors are in contact and non-contact type two, which is the Sensor Camshaft probe is an important part of it is directly related to the temperature measurement accuracy and stability. Typically, Camshaft Position Sensor probe can be divided into three main types . 1 , piercing ( immersion ) probe . These probes are used to measure the temperature of liquids and solids , the probe needle tip is designed to pierce . In use, if the temperature of the probe than the actual measured temperature of the object is low, there is the principle of conservation of energy , heat conduction from the probe at the measured object ; than the actual temperature of the probe if the measured object temperature , then heat the conduction from the probe to the object to be measured above . In this case, the object under test is heated up , the measured temperature is the temperature of the object after heating . In this case it is necessary to consider the ratio of the probe and the medium , because the ratio of the probe and the medium is better , more precise object to obtain a measured energy , reduce the measurement error caused . We must be clear instruments to measure the temperature value is not the medium temperature , but the temperatureofAutomotive Temperature Sensors . The main methods of reducing measurement error are: ensuring piercing or immersion depth of the probe diameter 10-15 times ; when the sample medium is liquid, to try to make it in a static state . 2, the air temperature probe . This probe is mainly used for air temperature measurement, such as refrigerator , freezer , air conditioning rooms, airy spaces , etc. , the probe exposed to the air, so it is easily affected by airflow disturbances , the best solution is for the two airflow -3m / s , the downstream probe is moved above the light , the temperature reached equilibrium and stability. 3 , the surface of the probe . This probe is mainly used for measurement of the surface temperature . When using the probe tip may be measured perpendicular to the object , and close contact with the object under test . Must be noted that the probe and the measured object contact surfaces must be smooth , otherwise easily lead to measurement errors.