What are the characteristics of radio frequency sensors

　　The radio frequency sensor is generally composed of three parts: a light source, an optical path, and a photoelectric element. Convert the measured change into a change in the optical signal, and then further convert the optical signal into an electrical signal with the help of photoelectric elements

　　Features of radio frequency sensors:

　　1. Long detection distance: Compared with inductive radio frequency sensors, a long detection distance can be obtained. For example, the detection distance of through-beam sensors can reach tens of meters, and the reflection has been from several centimeters to several meters. Because it is non-contact detection, It does not damage the measured object, nor is it affected by it.

　　2. Wide range of detection objects: Because the detection is based on the reflection and light transmission of the detection object, it can be detected whether it is metal, glass, rubber, wood, liquid, etc.

　　3. Fast response speed: The detection medium itself is high-speed and does not include mechanical actions, so a very high detection speed can be obtained.

　　4. High resolution: light travels in a straight line and has a short wavelength, so the resolution is high, which is suitable for small objects and high-precision position detection.

　　5. Easy to obtain regular detection area: the lens and other optical systems can be used to easily condense, diffuse and refraction. Corresponding to different detection objects and different use environments, products with a certain detection area can be appropriately selected.

　　6. Not affected by magnetic field and vibration: The detection switch is generally installed in places with strong magnetic field and vibration. In essence, the radio frequency sensor is rarely affected by it, so it can operate reliably.

　　7. Use light characteristics to detect: color code, shape feature selection and detection can be done.

　　8. Long life: Because it is non-contact detection, it has a long life. Especially when light-emitting diodes are used as light sources, and the control output adopts a non-contact method, the life is longer.

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