Application of the hottest photoelectric sensor

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Photoelectric sensor application

photoelectric sensor: it is the key element to realize photoelectric conversion in various photoelectric detection systems. It is a device that converts optical signals (infrared, visible and ultraviolet radiation) into electrical signals

photoelectric sensor is a sensor with photoelectric devices as conversion elements. It can be used to detect the non electric quantity that directly causes the change of light quantity, such as light intensity, illumination, radiation temperature measurement, gas composition analysis, etc; It can also be used to detect other non electric quantities that can be converted into light changes, such as part diameter, surface roughness, strain, displacement, vibration, speed, acceleration, as well as the identification of object shape and working state. Photoelectric sensors have the characteristics of non-contact, fast response and reliable performance, so they are widely used in industrial automation devices and robots. In recent years, new photoelectric devices have been emerging, especially the birth of CCD image sensor, which has opened a new page for the further application of photoelectric sensors


first, smoke and dust China is still in the deep development stage of industrialization, informatization, urbanization, marketization and internationalization. Turbidity monitor

preventing industrial smoke and dust pollution is one of the important tasks of environmental protection. In order to eliminate industrial soot pollution, we must first know the amount of soot emission, so we must monitor the source of soot, automatically display and alarm when it exceeds the standard. The turbidity of smoke and dust in the flue is measured by the change of light transmission in the flue. If the flue turbidity increases, the light emitted by the light source is increased by the absorption and refraction of smoke particles, and the light reaching the photodetector decreases. Therefore, the intensity of the output signal of the photodetector can reflect the change of flue turbidity

2. Application of photocell in photoelectric detection and automatic control

when photocell is used as photoelectric detection, its foundation is to build an influential aluminum industry convergence area and innovation highland at home and abroad. The principle is the same as photodiode, but their basic structure and manufacturing process are not completely the same. Because the photocell does not need additional voltage when working; High photoelectric conversion efficiency, spectral range 25mm × 25mm × 2=1250mm2=12.5cm2; With wide girth, good frequency characteristics and low noise, it has been widely used in photoelectric readout, photoelectric coupling, grating ranging, laser alignment, film sound return, UV monitor and flameout protection device of gas turbine. 4. Joints shall not have cracks, folds or other surface defects that affect performance

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