Photoelectricity reminds you that the working principle of the detection grating is: the light curtain for measurement is a special photoelectric sensor, which, like the ordinary photoelectric sensor, contains two parts, the transmitter and the receiver, which are separated from each other and placed relatively. However, its overall dimension is relatively large, and it is long tubular. The detection light generated by the measuring light curtain transmitter is not only one beam like ordinary sensors, but also generates a light array at regular intervals along the length direction to form a "light curtain". In a scanning way, the function of monitoring and measuring the size of the object shape is realized by cooperating with the controller and its software. The light curtain measurement system needs to be equipped with a controller for normal operation. The controller uses software for programming and can provide multiple scanning modes and detection and analysis modes. It can also communicate with PLC or computer through serial interface to transmit control or scanning results. In addition, it can also access trigger signals to control the scanning process.

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