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.

Date of Patent:
Jan. 07, 1992

Filed:

Jan. 29, 1991
Applicant:
Inventor:

Josef Kleinhans, Vaihingen/Enz, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; H03J / ;
U.S. Cl.
CPC ...
331 65 ; 324236 ; 340686 ; 377 17 ;
Abstract

An inductive position indicator in particular for determining an angular position of a throttle flap of an internal combustion engine comprises an oscillator circuit, reversible oscillating circuit branches, a position detecting element cooperating with the oscillating circuit branches for position-dependent change of their inherent frequencies, and an evaluating circuit which determines the position from the current inherent frequencies, the oscillator circuit having two oscillators which in one reverse position cooperate with an associated first respectively second oscillating circuit branch and in another reverse position oscillating circuit elements of the first and second oscillating circuit branches are exchanged with one another so that each oscillator cooperates with a third respectively a fourth oscillating circuit branch of another inherent frequency.


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