The working principle of infrared induction switch
The infrared light switch is the abbreviation of photoelectric proximity switch. It uses the blocking or reflection of the detected object to the light beam, and the synchronization circuit gates the circuit to detect the presence or absence of the object. Objects are not limited to metal, all objects that can reflect light can be detected. The hand sweep switch converts the input current into an optical signal on the transmitter and emits it. The receiver then detects the target object according to the strength of the received light or the presence or absence of the target object. When there are hands or other obstructions around 5cm from the sensor When blocking, it will reflect the infrared light signal emitted by the transmitting end to the receiving end, and the receiving end receives this signal. After the feedback circuit calculates, the lamp is intelligently controlled to turn on/off, so that the lamp works from ON to OFF.
