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Overview of the sensor
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Overview of the sensor


1. National standard GB7665-87 definition of sensor: The sensor is a detection device that can feel the measured information, usually consisting of sensitive elements and switching elements.

2. The sensor consists of four parts: sensitive components, conversion components, conversion circuit and auxiliary power. 

                                           Sensor output signal division

Electric quantity

Non electric quantity

Binary type


With  contact type(eg: contact switch)

        NO contact type (eg photoelectricty switch)

Analog type


Resistive type (eg: potentiometer)

Voltage/electric current (eg: CDS battery )

Inductors/capacitor(eg: variable capacitor)

Digital type


Count type (eg: counter)

Code type(eg: tape)


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