Document Type

Patent Application

Publication Date

1-19-2012

Abstract

A concentric coplanar capacitive sensor includes a charged central disc forming a first electrode, an outer annular ring coplanar with and outer to the charged central disc, the outer annular ring forming a second electrode, and a gap between the charged central disc and the outer annular ring. The first electrode and the second electrode may be attached to an insulative film. A method provides for determining transcapacitance between the first electrode and the second electrode and using the transcapacitance in a model that accounts for a dielectric test piece to determine inversely the properties of the dielectric test piece.

Assignee

Iowa State University Research Foundation, Inc.

Application Number

13/185,156

Date Filed

7-18-2011

Language

en

File Format

application/pdf

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