The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 1978
Filed:
Dec. 27, 1976
George Francis Boesen, Park Ridge, IL (US);
Peter Lawrence Kay, Arlington Heights, IL (US);
Borg-Warner Corporation, Chicago, IL (US);
Abstract
A variable area capacitive transducer has two electrodes, and the surface of one electrode is treated to provide it with a thin-film dielectric layer. One of the two electrodes has an apex point nearer the other electrode than the remainder of the electrode surface. As a force is applied to the deformable one of the two electrodes, there is a change in the effective contact area between the electrodes and a resultant change in capacitance. An electrical circuit is disclosed for translating this capacitance change into a d-c voltage change. Temperature compensation is provided for the transducer assembly.