Measurement of a coating on a composite using capacitance

Details Measurement of a coating on a composite using capacitance Measurement of a coating on a composite using capacitance

2006-02-07

2006-02-07

Benson, Walter (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S663000

Reexamination Certificate

active

06995574

ABSTRACT:
A method for measuring a thickness of a non-conductive coating on a semi-conductive substrate includes placing a pair of conducting plates in contact with the non-conductive coating. A capacitance value of the non-conductive coating in combination with the semi-conductive component is measured using a capacitance meter. The measured capacitance value of the non-conductive coating in combination with the semi-conductive component is then used to determine an independent capacitance value of the non-conductive coating. The thickness of the non-conductive coating is directly related to the independent capacitance value of the non-conductive coating.

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