Composition and classification of photoelectric sensors

The photoelectric sensor is a sensor that uses a photoelectric device as a conversion element. It can be used to detect non-electrical physical quantities that directly cause changes in light quantity, such as light intensity, illuminance, radiation temperature measurement, gas composition analysis, etc.; it can also be used to detect other non-electrical quantities that can be converted into light quantity changes, such as part diameter, surface roughness, Strain, displacement, vibration, speed, acceleration, as well as the recognition of the shape and working state of the object, etc. Photoelectric sensors have the characteristics of non-contact, fast response, reliable performance, etc., so they are widely used in industrial automation devices and robots. The emergence of new photoelectric devices, especially the birth of CCD image sensors, has opened a new page for the further application of photoelectric sensors.