The measuring light curtain sensor is mainly used to detect and measure whether the product meets the specified requirements. Measuring light curtain is widely used in non-contact measurement and detection, automatic control, and industrial machine tool safety in various industries. Measuring light curtain series products include training and examination plants, parking lots, vehicle over-limit inspection (length, width, and height), and turnstiles. , Passage passenger flow detection, passenger car number detection, etc.; measuring light curtain series products are used in online detection, precision correction, hole detection, edge detection, center positioning, tension control, component counting in industrial and consumer fields, etc. , On-line inspection, product size inspection and measurement, etc.

After the transmitter and receiver are energized, the infrared light emitted by the transmitter is directed to the receiver to form a light curtain system, and the target object is placed (or operated) in the formed light curtain system, which will block a part of the infrared light so that the corresponding receiver cannot Receive the corresponding receiving device. The measuring light curtain uses synchronous scanning to identify the blocked light. First, a transmitter channel sends out a light pulse and the corresponding receiver searches for the corresponding pulse at the same time. When it is found, it completes a scan that has passed, and then turns to the next channel until The completion of scanning of all channels is a scanning cycle, and in this cycle it is recorded which light is passed and which light is blocked, and a signal is output according to the system.