Photoelectric sensor

　　In the form of "light" detection - photoelectric sensors

　　The photoelectric sensor emits visible light and infrared light through the transmitter, and then detects the change in the amount of light reflected by the detected object or blocked by the receiver to obtain the output signal.

　　1) Principle:

　　It is illuminated by the light-emitting element of the transmitter and received by the light-receiving element of the receiver.

　　2) Main types

　　3) Features:

　　Non-contact detection: It can be detected without contact, so it will not scratch the detection object, nor damage the sensor itself, extending the service life and eliminating maintenance.

　　Can detect a variety of objects: by the amount of surface reflection or shading of the object detection, so can detect a variety of objects (glass, metal, plastic, wood and liquid, etc.).

　　Long detection distance: High power photoelectric sensor for long distance detection.

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