eddy-current transducer


eddy-current transducer
The eddy current transducer uses the effect of eddy (circular) currents to sense the proximity of non-magnetic but conductive materials. A typical eddy current transducer contains two coils: an active coil (main coil) and a balance coil. The active coil senses the presence of a nearby conductive object, and balance coil is used to balance the output bridge circuit and for temperature compensation.

Mechanics glossary. 2013.

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