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:
Jan. 24, 2006
Filed:
Apr. 29, 2004
Manfred Rührig, Eckental, DE;
Joachim Wecker, Röttenbach, DE;
Alfred Ludwig, Dachau, DE;
Eckhardt Quandt, Bonn, DE;
Markus Löhndorf, Bonn, DE;
Manfred Rührig, Eckental, DE;
Joachim Wecker, Röttenbach, DE;
Alfred Ludwig, Dachau, DE;
Eckhardt Quandt, Bonn, DE;
Markus Löhndorf, Bonn, DE;
Abstract
A sensor device having a magnetostrictive force sensor is provided. To detect a force, the sensor device contains a TMR force sensor element having a magnetic detection layer of material having a magnetostriction coefficient λ≧|5·10|, a magnetically harder reference layer, and a tunnel barrier disposed between these layers. Established in the detection layer is a starting magnetization that relative to the magnetization of the reference layer, which is directed in the direction of force, forms an angle of other than 0° and thus is rotated out of its starting position under the effect of the force.