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. 05, 2015
Filed:
Aug. 11, 2011
Sorin Fericean, Leonberg, DE;
Andrea Hiller-brod, Weilheim, DE;
Reinhard Droxler, Eningen, DE;
Markus Fritton, Neuhausen, DE;
Daniel Kraeter, Sulzfeld, DE;
Sorin Fericean, Leonberg, DE;
Andrea Hiller-Brod, Weilheim, DE;
Reinhard Droxler, Eningen, DE;
Markus Fritton, Neuhausen, DE;
Daniel Kraeter, Sulzfeld, DE;
Balluff GmbH, Neuhausen/Filder, DE;
Abstract
A device for detecting a twist angle and/or a torque of a shaft occurring on the shaft and methods for operating the device uses at least one first encoder and at least one second encoder at a predefined spacing therefrom. Each encoder influences at least one coil parameter, is associated with at least a part of the circumference of the shaft, and has at least one track having at least one period per revolution of the shaft. At least first and second inductive sensors scan the first and second encoders, respectively. Each inductive sensor provides a respective sensor signal reflecting at least one measure for the rotational angle of the shaft within the period, and a difference ascertainment unit ascertains and provides the twist angle of the shaft as an angle difference of the two rotational angles detected by the inductive sensors.