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:
Jul. 19, 1994
Filed:
Aug. 07, 1992
Applicant:
Inventor:
Bernard J Burreson, Seattle, WA (US);
Assignee:
Eldec Corporation, Lynnwood, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
32420716 ; 32420712 ; 32420724 ;
Abstract
Disclosed is an inductive divider sensor that comprises a variable inductor (12) connected in series with a fixed inductor (16) between a source of AC voltage and ground. A target element (18) is moved by an object whose position is to be sensed along an axis that extends through the variable inductor thereby changing its impedance. The impedance of the variable inductor is designed to vary such that the voltage taken at a node where the variable inductor and fixed inductor are connected varies according to a predetermined linear output signal.