What Are The Classifications Of Standard Photoelectric Sensors Commonly Used In Photoelectric Guiding Devices?

Standard photoelectric sensors commonly used in photoelectric web guiding devices are classified into categories

1): diffuse reflection type: general or energy type (-8), focused type (-8 H), background suppression type (-8 H), and background analysis type (- 8 HW). 2) Reflective photoelectric switch / photoelectric sensor: general (-6), polarizing filter (-54-55), transparent body detection (-54-G) and foreground suppression (-54-V) will be light emitters and The receiver is mounted in the same unit with a reflector mounted in front of it and photoconducting.

Adopt the principle of reflection. This function is called a reflector mirror (or mirror) photoelectric switch. Typically, the light emitted by the light emitter is reflected back by the reflector and received by the receiver; once the light path is blocked by the object being detected, the receiver cannot receive light and the photoelectric switch will act and output a switch control signal.

3) A pair of photoelectric photoelectric sensors. If the light emitter and the light receiver are separated, the detection distance can be increased. A photoelectric switch composed of a light emitting device and a receiver is called a photoelectric switch and is called a photoelectric switch having emission separation. Its detection distance can reach several meters or even tens of meters. In use, the light emitter and the light receiver are respectively installed on both sides of the path of the detector, and when the detector passes, the light path is blocked, and the light receiver outputs a switch control signal.

4) Turn on the photoelectric switch / photoelectric sensor. The light emitter and receiver are mounted face to face on one side of the recess. The illuminator can emit infrared or visible light, and the light receiver can receive light without any hindrance. However, when the detected object passes through the slit, the light is blocked and the photoelectric switch moves. The switch control signal is output, and the load current is cut off or turned on to complete the control action. Due to the limitation of the overall structure, the detection distance of the gap switch is only a few centimeters.

5) Optical fiber photoelectric switch / photoelectric sensor. Light emitted by the light emitter is directed by the fiber to the detection point, and the detected light signal is then directed by the fiber to the light receiver. Photoelectric switches can be divided into various types according to different working modes, such as anti-reflection type, reflective plate type, diffuse reflection type and the like.