What are the various categories of sensors

Sensor is a sensing device designed according to biological, physical, chemical and other data characteristics. In the category of automatic measurement and control, sensors designed by a certain principle can simultaneously measure a variety of non-electric power online, and sometimes a non-electric sensor can be detected by a variety of different principles, so there are many classification methods for sensors, which can be classified according to the following methods.

6mm imitation displacement sensor according to the input can be divided into temperature, humidity, pressure, speed, displacement and other sensors, this classification method shows the practicality of the sensor, easy to choose, but the classification method will be different principles of the sensor classification into a class, it is difficult to find the common and differences of the sensor conversion principle, such as TKA-386 F pressure gauge belongs to the pressure sensor, Laser sensor GJJG series is a displacement sensor.

According to the output classification, it can be divided into analog quantity, switching quantity and digital sensor. Analog sensor output signal is analog signal; The output signal of the digital sensor is a digital signal, which is combined with the control system and the computer, and has strong anti-interference ability. According to the semiconductor theory, it can be divided into semiconductor photosensitive, force sensitive, gas sensitive, heat sensitive and other solid state sensors.

According to the measurement principle, which is based on thermoelectric, voltage type, photoelectric type, resistance type, inductance type and other physical and chemical principles, laws and effects, the advantage of this classification method is that the working principle of the sensor is compared with each other, the type is less, which is conducive to the deepening discussion and analysis of the sensor. Such as photoelectric switch GJE and GJQ series, inductive proximity switch GJL series and GJC series.

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