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Photoeye sensor manufacturers will take you to understand: What are the types of photoelectric effects of photoelectric sensors

  • Categories:INDUSTRY NEWS
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  • Time of issue:2021-09-08 09:36
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(Summary description)Under normal circumstances, the Photoeye sensor consists of two parts: processing path and processing element. Its basic principle is to use the photoelectric effect to convert the measured changes into optical signal changes, and then use photoelectric elements to further convert non-electrical signals into electrical signals.

Photoeye sensor manufacturers will take you to understand: What are the types of photoelectric effects of photoelectric sensors

(Summary description)Under normal circumstances, the Photoeye sensor consists of two parts: processing path and processing element. Its basic principle is to use the photoelectric effect to convert the measured changes into optical signal changes, and then use photoelectric elements to further convert non-electrical signals into electrical signals.

  • Categories:INDUSTRY NEWS
  • Author:
  • Origin:
  • Time of issue:2021-09-08 09:36
  • Views:
Information

Under normal circumstances, the Photoeye sensor consists of two parts: processing path and processing element. Its basic principle is to use the photoelectric effect to convert the measured changes into optical signal changes, and then use photoelectric elements to further convert non-electrical signals into electrical signals. The Photoeye sensor manufacturer tells you that the “photoelectric effect” refers to illuminating an object with light, which can be regarded as a certain energy sequence of photons bombarding the object. At this time, the energy of the photon is transferred to the electron, and all the energy of the electron is The electron absorbs at one time. When the electron gains the energy transferred by the photon, its state will change, so the object irradiated by the light will produce the corresponding electric effect. Photoeye sensor manufacturers tell you that the photoelectric effect is generally divided into three categories:

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(1) The phenomenon that electrons can escape from the surface of an object under the action of light is called external photoelectric effect, such as photoelectric tube, photomultiplier tube, etc.;
(2) The phenomenon that the resistivity of an object can be changed under the action of light is called the internal photoelectric effect, such as photoresistors, phototransistors, etc.;
(3) Under the action of light, the phenomenon that an object generates an electromotive force in a certain direction is called photovoltaic response, such as a photovoltaic cell.
Photoeye sensor is a device that converts light signals (visible and ultraviolet laser light) into electronic signals, and is a key element for photoelectric conversion in various photoelectric detection systems.
Photoeye sensor is a sensor that uses optoelectronic devices as conversion elements. The system can detect non-electrical physical quantities that directly lead to changes in the amount of light, such as light intensity, illuminance, radiation temperature, gas composition analysis, etc.; it can also detect other non-electrical factors, such as part diameter, surface roughness, strain, displacement, Vibration, speed, acceleration, object shape, working condition recognition, etc., are transformed into light quantity changes. Photoeye sensor manufacturers tell you that optoelectronic sensors have the characteristics of non-contact, fast response, and reliable performance, so they are widely used in industrial automation equipment and robots. The emergence of new types of optoelectronic devices, especially the birth of CCD image sensors, has opened up new horizons for the further application of optoelectronic sensors.
The editor of Photoeye sensor's little knowledge is shared here. Have you learned new things through this article?

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