When the sensor is working mechanism of magnetic effect according to Faraday's law of electromagnetic induction, N-turn coil sports car image sensor in a magnetic field, cutting magnetic field lines (or magnetic field of the coil where the magnetic flux change), the size of the coil induced electromotive force generated depends on through the rate of change of the magnetic flux of the coil, the linear movement type magnetic sensors straightly moving magnetic sensor consists of a permanent magnet, coil and other components and sensor housing when the housing together with the measured vibration and the vibration frequency of the vibrator is much larger than the sensor's inherent the frequency, the spring is relatively soft, relatively large mass of moving parts, moving parts together too late with the vibrating body vibration (stationary). In this case, the relative velocity between the magnet and the coil near the vibration velocity of the vibrator. Automotive Sensors - position and speed sensor position and speed sensors are used to detect the crank angle, engine speed, throttle opening, vehicle speed. Vehicle position and speed sensors mainly alternator type, magnetoresistive, Hall-effect type, reed switch, optical, magnetic semiconductor transistor type, etc., the measurement range of 0 to 360 automotive sensors, precision 0.5 Hereinafter, measuring the bending angle of 0.1. A wide range of vehicle speed sensor, wheel rotation-sensitive, but also sensitive power transmission shaft rotation, as well as sensitive to the differential rotation of the driven shaft. When the speed is higher than 100km / h, the general measurement error is large automotive sensor voltage, requires the use of non-contact speed sensor automotive sensors photoelectric effect, speed range of 0.5 ~ 250km / h, 0.1% repeatability, distance measurement error better than 0.3%. Automotive sensors Automotive sensors _ size _ Hubei Xinfeng Xinfeng sensor provided by Xinxiang purification technology Limited. Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) strong, credible, in Xinxiang sensor industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement will lead Xinfeng innovative ideas into the brilliant and you work for a better future!