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The principle of proximity sensor

- Dec 25, 2017 -

Detection principle of inductive proximity sensor

The magnetic loss caused by the Eddy current on the conductor surface is detected by the influence of the external magnetic field. The method of detecting the impedance change caused by the eddy current produced by the metal body of the body is detected in the coil.

In addition, as an alternative, the detection of the frequency phase components of the aluminum detection sensor, and through the work coil only to detect the impedance changes in the composition of the full Metal sensor.

The state of the transformer occurs on the side of the detector and on the surface of the sensor side.


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