Photoelectric sensor classification – ifm sensors

Create Date: 2024-8-30 12:03:23|Source: IFM/ifm

(1) Fork photoelectric sensor

Placing a light emitter and a sticker face to face on either side of a slot is a fork photonics. The luminaire can announce infrared or visible light, and the luminaire can receive light in an unobstructed environment. However, when the detected object passes through the slot, the light is blocked and the photoelectric switch is activated. Output a switch control signal, block or turn on the load current, and then complete a control action. The detection interval of the groove switch is generally only a few centimeters due to the overall layout.

                                 Photoelectric sensor classification – ifm sensors

(2) Thru-beam photoelectric sensor

If the light emitter and receiver are separated, the detection interval can be increased. The photoelectric switch composed of a light emitter and a light receiver is called a through-beam photoelectric switch, referred to as a through-beam photoelectric switch. Its detection interval can be several meters or even tens of meters. When using, the luminaire and the receiver are respectively installed on both sides of the diameter of the detected object, and the detector outputs a switch control signal on the action after the detection object has passed.

(3) Reflector type photoelectric switch

The luminaire and the receiver are loaded into the same device, a reflector is installed in front of it, and the photoelectric control is called the reflector reflection (or mirror reflection type) photoelectric switch. Under normal conditions, the light announced by the luminaire is reflected back by the reflector and received by the receiver; Once the light is covered by the detected object and the receiver cannot receive the light, the photoelectric switch will act and output a switch control signal.

(4) Diffusion reflection photoelectric switch

It also has a light emitter and a light collector in the detection head, but there is no reflector on the front. In general, it is not possible to find a light receiver announced by a luminaire. When the detector passes by and covers the light and reflects the light sector, the receiver receives the light signal and outputs a switching signal.

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