New era new photoelectric sensor technology

There have been new developments in the development direction and application fields of photoelectric sensors, and photoelectric sensors will follow the differences in technology to develop technology to a certain level on different occasions. Then the technology of photoelectric sensor can be understood as:

The photoelectric sensor is a sensor that uses a photoelectric element as the detection element. It first converts the measured change into a change in an optical signal, and then further converts the optical signal into an electrical signal with the help of photoelectric elements. After being irradiated by visible light, the photoelectric sensor produces a photoelectric effect, which converts the light signal into an electrical signal and outputs it. In addition to measuring light intensity, it can also measure a variety of physical quantities such as size, displacement, speed, temperature, etc. by light transmission, occlusion, reflection, interference, etc., so it is an important sensitive device photoelectric sensor with a wide range of applications It is generally composed of three parts: light source, optical path and photoelectric element. The photoelectric detection method has the advantages of high accuracy, fast response, non-contact, etc., and has many measurable parameters. The sensor has a simple structure and flexible and diverse forms. Therefore, the photoelectric sensor is widely used in detection and control.

Exceptionally, the photoelectric effect of a photoelectric sensor is mainly a physical phenomenon in which light irradiates certain substances and changes the electrical properties of the substance. It can be divided into two types: external photoelectric effect and internal photoelectric effect. The external photoelectric effect refers to the physical phenomenon in which electrons in an object escape from the surface of the object under the action of light. Photon is a description of electromagnetic waves in the visible light band in the form of quantized "particles". The photon has energy hv, where h is Planck's constant, and v is the optical frequency. The photon flux corresponds to the light intensity.