Photoelectric sensor
Photoelectric vision sensor
Scope of application ：
It is widely used in the detection and control of photoelectric sensors.
product details
Photoelectric sensor is generally composed of processing path and processing element.The basic principle is based on the photoelectric effect,which converts the measured changes into the changes of optical signals,and then further converts the non-electrical signals into electrical signals with the help of photoelectric elements.Photoelectric effect refers to the light illuminate an object,can be seen as a series of a certain energy for photon bombardment on the object,the photon energy is passed to the electronics,and total energy of a photon is one-time absorption by an electron,electronic after the energy of the photon transfer will change its state,so that the light objects produce corresponding electric effect.Photoelectric effect is usually divided into three categories:(1)external photoelectric effect is the phenomenon that can make electrons escape from the surface of objects under the action of light,such as photocell,photomultiplier tube,etc.(2)the phenomenon that can make the object's resistivity change under the action of light is called internal photoelectric effect,such as photosensitive resistance,photosensitive transistor,etc.(3)under the action of light rays,the phenomenon of electromotive force generated by objects in a certain direction is called photovolt-generating effect,such as photovoltaic cells.
Photoelectric detection method has the advantages of high precision,fast response,non-contact and so on,and can be measured parameters,sensor structure is simple,flexible and diverse forms,so the photoelectric sensor is widely used in detection and control.
Photoelectric sensor is the key element to realize photoelectric conversion in various photoelectric detection systems.It is the device that converts optical signal(visible and ultraviolet laser light)into electrical signal.
Photoelectric sensor is a kind of photoelectric sensor.It can be used to detect non-electrical physical quantities that directly cause the change of light amount,such as light intensity,light intensity,radiation temperature measurement,gas composition analysis,etc.It can also be used to detect other non-electric quantity that can be converted into light quantity change,such as part diameter,surface roughness,strain,displacement,vibration,speed,acceleration,and object shape and working state identification.Photoelectric sensors have the characteristics of non-contact,quick response and reliable performance,so they are widely used in industrial automation devices and robots.New photoelectric devices keep emerging,especially the birth of CCD image sensor,which opens a new page for the further application of photoelectric sensor.
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