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. 24, 2001
Filed:
Apr. 05, 2000
Norbert Ludwig, Brüggen, DE;
Frank Bürger, Düren, DE;
Pierburg AG, Neuss, DE;
Abstract
A measuring device for determining the position of a control element, such as a throttle valve in which a temperature-resistant Hal sensor (,) cooperates with a permanent magnet (,), which is connected to the control element by a spindle (,), in order to obviate the need for a conventional mechanical potentiometer. By virtue of the Hall effect, the Hall sensor (,) produces during movement of the control element and thus of the position of the permanent magnet (,) relative to the Hall sensor (,), an output signal (U,) that is preferably linearly proportional to the movement of the control element. The Hall sensor (,) is programmed to correct temperature, related measurement errors in the permanent magnet.