Method and apparatus for using eddy current transducers in...

Details Method and apparatus for using eddy current transducers in... Method and apparatus for using eddy current transducers in...

2005-07-12

2005-07-12

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Dimensional determination

Reexamination Certificate

active

06917896

ABSTRACT:
A method for measuring the distance of a gap separating an eddy current transducer and a target is provided. The method includes determining a normalized impedance curve for the transducer, determining a time rate of change of the normalized impedance of the transducer along a line of constant gap, and correcting an apparent gap magnitude using the determined time rate of change.

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