关于意普

  The light emitting device emits several invisible infrared beams, and the light receiving device receives the infrared beams from the light emitting device to form a rectangular detection light screen. The whole set of gratings is detected in a beam-by-beam scanning manner. Any opaque object larger than a certain size (such as a part of the operator's body, opaque workpieces, etc.) intrudes into the light curtain area, causing shading. When the security grating detects a blackout, it will enter an "abnormal" state - interrupt the output - within 20ms of the response time.