System for clearance measurement and method of operating the...

Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters

Reexamination Certificate

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C324S662000

Reexamination Certificate

active

07605595

ABSTRACT:
A clearance sensing system is disclosed. The system includes a probe separated from a test object by a variable distance d. The system also includes an alternating current (AC) source for supplying a current through the probe, wherein the AC source and the probe are configured to generate a controlled plasma channel between a tip of the probe and the test object. The system further includes a processing unit configured to determine the variable distance d based on a voltage difference between the tip of the probe and the test object.

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