The photoelectric protection device of Xaori mainly consists of infrared photoelectric protection device and intelligent photoelectric protection device. The intelligent grating includes detection and measurement grating, programmable grating, cross grating, etc. The photoelectric protection device is mainly used for industrial safety protection, and the measurement light curtain is suitable for detecting whether the product meets the regulations. The light curtain measurement system needs to be equipped with a controller for normal operation. The controller is programmed using software and can provide multiple scanning modes and detection analysis modes. It can also communicate with the PLC or computer through a serial interface to transmit control or scanning results. Additionally, it can be connected to trigger signals to control the scanning process.

Ordinary safety gratings are mainly used in punching machines, while the measuring light curtain is a special type of photoelectric sensor, which, like ordinary opposed photoelectric sensors, includes two parts: a transmitter and a receiver that are separated from each other and placed relative to each other. However, its overall size is large and it is a long tube. The detection light generated by the measurement light curtain transmitter is not just a single beam like a regular sensor, but an array of light rays is generated at fixed intervals along the length direction, forming a "light curtain". In a scanning method, combined with the controller and its software, the function of monitoring and measuring the size of the object's appearance is achieved.