Sensors (English name: transducer / sensor) is a detection device classification sensor, the sensor can feel the information to be measured, and can feel the information, according to certain rules converted into an electrical signal, or other forms of information required output, to meet the information transmission, processing, storage, display, recording and control requirements. Features sensors include: miniaturization, digital, intelligent, multi-functional, systematic, network. It is the automatic detection and automatic control of the primary link. The existence and development of the sensor, so that the object had touch, taste and smell and other senses, so that the object gradually became alive again. The basic functions are usually divided into thermal sensing element, the photosensitive element, gas sensors, force-sensitive components, magnetic components, humidity sensor, acoustic sensor according to its top ten class radiation-sensitive elements, color and flavor-sensitive components and other sensitive components . People in order to get information from the outside sensor types, must resort to the sense organs. The people rely on their senses, in the study of natural phenomena and laws as well as production activities in their function is far from enough. To accommodate this situation, we need sensors. Therefore we can say, the sensor is an extension of human facial features, also known as electric facial features. The arrival of the new technological revolution, the world began to enter the information age. In the use of information in the process, we must first solve is to obtain accurate and reliable information, and the sensor is to obtain the main ways and means of production in the field of natural and information. Sensor principle | Beijing sensor | Xinfeng Xinfeng sensor provided by Xinxiang purification technology Limited. Xinxiang City Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) strong, credible, Xinxiang in Henan 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!