The working mechanism of magnetic sensor according to Faraday's law of electromagnetic induction effect, N-turn coil in a magnetic field motion, cutting magnetic field lines (or magnetic coil where the magnetic flux change), the size of the coil induced electromotive force generated through the coil depends on the magnetic the rate of change through a linear mobile 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 greater than the natural frequency of the sensor, the Since the spring softer auto level sensor, a relatively large mass of moving parts, moving parts a chance to vibration (stationary) along with the vibrator. In this case, the relative velocity between the magnet and the coil near the vibration velocity of the vibrator. Test content in approximation of actual production, the test of different sensors and has a certain approximation. Because in principle from the test car level sensor specifications, automotive sensors are divided into active / passive, temperature, pressure sensors and other types. That is, for different sensor auto level sensor manufacturers, as long as the test principle is the same, it means that their test equipment and other equipment is the same. Efficient and flexible production line test equipment automotive sensors require the use of economic, efficient, automated, flexible test equipment, but also with high automation, high efficiency, high performance, high reliability. Sensor manufacturers hope after a one-time investment, the test equipment itself can continue to expand and effectively support the latest products and higher performance requirements to ensure the effectiveness of capital equipment investment. Quality auto level sensor, Xinfeng (certified), Shanghai Automotive water level sensor sensing provided by the Xinxiang City, Xinfeng purification technology Limited. Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) is a leader in Xinxiang, sensors, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In Xinfeng leadership with the staff warmly welcome all inquiries negotiations to create a better future Xinfeng.