Laser high directivity, high color and high brightness and other characteristics can be achieved without contact distance measurement. Laser sensors commonly used in length (ZLS-Px), distance (LDM4x), vibration (ZLDS10X), speed (LDM30x), orientation and other physical measurements, can be used for detection and monitoring of atmospheric pollutants and so on. Hall sensor is a magnetic field sensor based on the Hall effect produced, widely used in industrial automation technology, detection technology and information processing. Hall effect is the basic method of Semiconductor Materials. Hall effect experimentally determined by Hall coefficient, important parameters can be determined conductivity type semiconductor material, the carrier concentration and the carrier mobility and the like. Hall sensors into linear Hall sensor and Hall sensor switch two kinds. A linear Hall sensor consists of a Hall element, linear amplifier and emitter follower composition, it outputs analog. 2, the switching regulator by the Hall sensor, the Hall element, a differential amplifier filter sensors, Schmitt trigger and output stage filter sensor supplier, which digital output. Room temperature, pipe temperature sensors: a room temperature sensor for measuring indoor and outdoor ambient temperature sensor supply filters, pipe temperature sensor for measuring the evaporator and condenser tube wall temperature. Different shapes and pipe temperature sensor temperature sensor, but basically the same temperature characteristics. Divided by the temperature characteristics of the sensor cleaner production, the United States uses room temperature sensor tube There are two types: a constant B is 4100K ± 3%, the reference resistor is 25 ℃ corresponding resistance 10KΩ ± 3%. Resistance Tolerance corresponding 0 ℃ and 55 ℃ at approximately ± 7%; while below 0 ℃ and above 55 ℃, for different suppliers, resistor tolerance there will be some differences. The higher the temperature, the smaller the resistance; the lower the temperature, the greater the resistance. Farther away from 25 ℃, the greater the corresponding resistor tolerances. Luoyang cleaner filter sensor sensor manufacturers _ _ Xinfeng Xinfeng sensing 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!