German Fuchs Photoelectric sensors we usually call this sensor called proximity sensor. Emitter emitting light after the test object, at any angle scattering. The receiver receives some light (when receiving strong light when the switching threshold) the switch trigger, the object is detected. Generally, the detection distance related factors include: the test object size, color, gloss, etc. The actual detection distance sensor is based on the "white test board" as a reference. White reflectivity of 90%, generally regarded as the "standard of the test object." Low dark or matte reflectance test substance usually; therefore detection of such objects, you must increase the sensitivity of the sensor or sensors to detect objects closer. In this case, you must pay attention to the background object brighter than the test object, the results may detect background objects (and ignore the real test object). Photoelectric sensors for detecting small differences in color or contrast with background suppression ■ - - ■ color or contrast recognition sensor for precise detection of objects ■ Glass and plastic fiber - small for space or special occasions ambient temperature ■: Characteristics Laser Type - used to detect small objects ■ ■ plastic or metal products are widely used in harsh environments used in various machinery, machine tool manufacturing, textile, paper, tobacco, light industry, food, chemical, mining, metallurgy, aviation industry all walks of life quality electricity security, automotive, marine transportation, construction and other first, reputation first, customers first, service first, sincere cooperation, mutual benefit, the company is consistent operating purposes. If you have any needs, please contact us, we will make every effort to serve you!