When the detected object passes through the slot, the light is blocked, the photoelectric switch will act, and a switch control signal will be output to cut off or turn on the load current, thereby completing a control action.
The transmitter is aimed at the target to emit a light beam, and the emitted light beam generally comes from a semiconductor light source, light emitting diode (LED), laser diode, and infrared emitting diode. The beam is emitted continuously, or the pulse width is changed. The receiver is composed of photodiodes, phototransistors, and photocells. In front of the receiver, optical components such as lens and aperture are installed. Behind it is the detection circuit, which can filter out the effective signal and apply the signal.
The illuminator can emit infrared light or visible light, and the light receiver can receive light without obstruction.
Dimensions:
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