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:
Jun. 11, 2013
Filed:
Nov. 15, 2010
Josef Siraky, Donaueschingen, DE;
Dirk Schmidt, Suhl, DE;
Jörg Kegeler, Schleusingen, DE;
SICK Stegmann GmbH, Donaueschingen, DE;
Schaeffler Technologies GmbH & Co. KG, Herzogenaurach, DE;
INA Drivers & Mechatronics GmbH & Co. OHG, Suhl, DE;
Abstract
The invention relates to a roller bearing (), with a revolving bearing component () and a stationary bearing component (), and with a capacitive sensor unit (). The capacitive sensor unit () comprises a pivoted sensor element (), which is connected to the revolving bearing component (), and a stationary sensor element (). The sensor units () form a capacitor. At least one of the sensor elements () bears a first material measure (), so that a change arises in the capacitance of the capacitor when there is a relative motion in the sensor areas (). The sensor unit also includes a means for generating a periodic electrostatic field between the sensor plates, and a processing and amplifying electronics unit for evaluating the change in capacitance.