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The photoelectric beam sensor manufacturer will take you to understand: the photoelectric effect of the photoelectric sensor

  • Categories:Photoeye sensor
  • Author:
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  • Time of issue:2021-10-16 09:46
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(Summary description)The photoelectric beam sensor manufacturer tells you that under normal circumstances, the photoelectric sensor is composed of two parts: a processing path and a processing element.

The photoelectric beam sensor manufacturer will take you to understand: the photoelectric effect of the photoelectric sensor

(Summary description)The photoelectric beam sensor manufacturer tells you that under normal circumstances, the photoelectric sensor is composed of two parts: a processing path and a processing element.

  • Categories:Photoeye sensor
  • Author:
  • Origin:
  • Time of issue:2021-10-16 09:46
  • Views:
Information

The photoelectric beam sensor manufacturer tells you that under normal circumstances, the photoelectric sensor is composed of two parts: a processing path and a 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 manufacturer of the photoelectric beam sensor tells you the photoelectric effect" refers to illuminating an object with light, which can be regarded as bombarding the object with photons in a certain energy sequence. At this time, the energy of the photon is transferred to the electron, and all the energy of the electron is An electron is absorbed at a time, and when the electron gains the energy transferred by the photon, its state will change, so the object illuminated by the light will have a corresponding electrical effect. Generally, the photoelectric effect is divided into three categories:

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1. The phenomenon that electrons can escape from the surface of the object under the action of light is called the 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.
The photoelectric beam sensor manufacturer tells you that a photoelectric 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.
The manufacturer of the photoelectric beam sensor tells you that the photoelectric sensor is a sensor that uses an optoelectronic device as a conversion element. 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. The photoelectric beam sensor manufacturer tells you that the photoelectric sensor has the characteristics of non-contact, fast response and reliable performance, so it is 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.

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