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:
Mar. 12, 2002
Filed:
Jul. 26, 1999
Applicant:
Inventors:
Wolfgang Porth, Frankfurt, DE;
Lother Gier, Bad Nauheim, DE;
Assignee:
Mannesmann VDO AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 3/00 ; B25B 2/314 ;
U.S. Cl.
CPC ...
G01L 3/00 ; B25B 2/314 ;
Abstract
A torque sensor has a first signal generator whose output signal changes as a function of a torque, a second signal generator whose output signal changes in the opposite direction as a function of the torque, and a circuit which has a difference-forming unit and a summing device. The output signal of each signal generator passes through an amplifier whose gain is controlled and identical for both output signals and the amplified output signals are present on the difference-forming unit and on the summing device the output of the summing device being connected to a controller which controls the gain.