Photoelectric switch is a kind of sensor, which converts the change of light intensity between the transmitting end and the receiving end into the change of current to achieve the purpose of detection. The photoelectric sensor is a new generation photoelectric switch device manufactured by using integrated circuit technology and SMT surface mounting process, which has intelligent functions such as time delay, spreading, external synchronization, mutual interference resistance, high reliability, stable working area and self-diagnosis. This novel photoelectric switch is an active photoelectric detection system type electronic switch using pulse modulation, and the cold light sources it uses are infrared light, red light, green light and blue light, etc. It can non-contact, non-damagingly quickly and control the state and action of various solids, liquids, transparent bodies, black bodies, soft bodies and smoke and other substances.
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Photoelectric switches are used in many applications, such as level detection, liquid level control, product counting, width discrimination, speed detection, fixed-length shear, hole identification, signal delay, automatic door sensing, color-coded detection, punching and shearing machines, and security protection, among many other fields. In addition, using the concealment of infrared light, it can also be used in banks, warehouses, stores, offices and other occasions where needed as anti-theft alarms. Photoelectric switches are simple, small and relatively durable.
