What is the difference between proximity switch and radio frequency sensor

　　The magnetic core inside the proximity switch changes the internal oscillation circuit by being close to the metal, and then outputs a signal. Suitable for detecting metal objects at a relatively close distanceThe photoelectric switch emits a light beam to the surface of the object, and then bounces to the receiving end of the switch. The receiving end receives the optical signal and converts it into an electrical signal to form an output. Suitable for detecting objects at a long distance.

　　Shenwu Sensor Co., Ltd. specializes in the production of radio frequency sensors, capacitive radio frequency sensors, combined with foreign technology, to provide customers with cost-effective products.

　　Radio frequency sensors are based on photodiodes, which generate current under light. Of course, there are many types of radio frequency sensors. They are classified according to spectrum, output mode, control mode, function, and so on.

　　Proximity switch is a sensor that can sense proximity. It has different implementation principles, such as capacitive, inductive, pressure-sensitive, infrared-sensitive, and so on.

　　The proximity switches currently used on mobile phones use infrared, and magnetic induction is quite common in the industry.

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