Variable capacitance sensors and methods of making the same

Patent metadata

Field	Value
Publication number	US-9018060-B2
Application number	US-201113703545-A
Country	US
Kind code	B2
Filing date	Jun 2, 2011
Priority date	Jun 15, 2010
Publication date	Apr 28, 2015
Grant date	Apr 28, 2015

Abstract

A variable capacitance sensor includes a first conductive electrode comprising electrically interconnected first conductive sheets; a second conductive electrode comprising electrically interconnected second conductive sheets, wherein the first conductive sheets are at least partially interleaved with the second conductive sheets, and wherein the second conductive electrode is electrically insulated from the first conductive electrode; and microporous dielectric material at least partially disposed between and contacting the first conductive sheets and the second conductive sheets. A method of making a variable capacitance sensor by replacing ceramic in a ceramic capacitor with a microporous material is also disclosed.

First claim

What is claimed is:

1. A variable capacitance sensor comprising:
a first conductive electrode comprising electrically interconnected first conductive sheets;
a second conductive electrode comprising electrically interconnected second conductive sheets, wherein the first conductive sheets are at least partially interleaved with the second conductive sheets, and wherein the second conductive electrode is electrically insulated from the first conductive electrode;
a ceramic mater…

Assignees

• Gryska Stefan H
• Palazzotto Michael C
• 3M Innovative Properties Co

Inventors

• Gryska Stefan H
• Palazzotto Michael C

Classifications

• G01R27/2605 Primary

  Physics · mapped topic

• G01N27/226 Primary

  Physics · mapped topic

• G01N27/223

  Physics · mapped topic