Application of the knock sensor function car sensors: detecting engine block vibration, for the electronic controller to identify engine knock conditions. Principle: The knock sensor is an acceleration sensor. It is mounted on the engine block can be put in a more just. Sensitive element of the sensor is a piezoelectric crystal, engine knock, automotive sensor voltage, engine vibration transmitted through the mass with the sensor onto the crystal inside. Piezoelectric crystal quality due to the pressure generated by the vibration block, two pole face in a voltage, the vibration signal into a voltage output. Idle regulator functions: to provide the idle bypass air passage, Kunming automotive sensors, and by changing the passage sectional area of ??the impact of bypass gas to achieve closed-loop speed control of the engine idling condition. Principle: in the idling regulator is available on a freely rotatable shaft of the permanent magnet is rigidly connected with a permanent magnet rotating slider in the cable coil driven rotation, the slider rotates. Angular position of the slider determines the opening of the bypass flow passage of the actuator, the role of automotive sensors, which can adjust the size of the bypass air quantity. An electronic controller is supplied to the actuator by varying the duty cycle of the pulse signal determines the angular position of the slider, automotive sensor technology to determine the bypass air flow. Commonly used types of sensors on the car including the wheel speed sensor, crankshaft / camshaft position sensors, temperature sensors, pressure sensors, knock sensors. For the endless stream of models, each feature the same sensor in shape and have a variety of differences, coupled with the measure, the production environment become more demanding, the traditional single test bench not take into account such diverse sensor production. Automotive sensors action | Xinfeng (certified) | Kunming Automotive Sensors Sensing 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.