2013年9月16日星期一

Modern sensor performance requirements

With the sensor a little bit of development and progress , which involves increasingly wide range of performance requirements also change , according to the characteristics of the times and the needs of development , we will have what conditions the sensor performance to you to do a specific analysis . ( 1 ) With high-precision depth scientific research , engineering controls precise , requiring as much as possible to improve the accuracy of Camshaft Position Sensor on the "online" processing and testing requirements than 0.1μm, the rocket engine of the dynamic pressure measurement accuracy should be better than 0.1% , the microstructure of the material reaches m measurement order . ( 2 ) intelligent sensor technology to have a broad understanding of the function of the state space , the first problem is the complexity of the automation system . Such as iron and steel industry , the first control plate thickness and composition , followed by detection and management of defects on the surface shape. With the shape from the point of administration to manage the complexity of the surface , exposing sensitive devices and signal processing weaknesses. Robot appears, the more urgent requirements for intelligent Engine Coolant Temperature Sensor , there is no visual and tactile robot whose job is greatly restricted , versatility significantly reduced. Another example is the spacecraft and satellites transmit information to Earth , a huge data should first be distributed intelligent sensor processing, then compress the data transmitted to the Earth , so as to improve the efficiency of the system . Distributed processing sensor signal that is closer to human facial features , so intelligent sensors are progressive corollary ( 3 ) miniaturization and integration testing on many occasions , requires that Engine Temperature Sensors has the smallest possible size , such as onboard sensors, into the human body in biomedical sensors , wind tunnel sensors measuring the pressure field distribution , require miniaturization possible . In addition to converting the sensor miniaturization miniature components must completely apart , more importantly, the sensing element is closely associated amplifier , temperature compensation , signal storage and processing circuit must also be miniaturized . Using integrated circuit technology successfully integrated sensing elements and circuits on a single chip , so that both micro and stability is the development trend of the sensor

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