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:
Oct. 13, 2020
Filed:
Sep. 18, 2018
Iwis Antriebssysteme Gmbh & Co. KG, Munich, DE;
Peter Kreisfeld, Winkelhaid, DE;
Florian Madlener, FĂĽrstenfeldbruck, DE;
Josef Siraky, Donaueschingen, DE;
Thomas Wolf, Munich, DE;
IWIS ANTRIEBSSYSTEME GMBH & CO. KG, Munich, DE;
Abstract
A chain sensor includes a first magnetic circuit, a device for measuring the magnetic flux density in the first magnetic circuit, and a coil. The magnetic circuit is substantially formed by a magnetically conductive yoke body. The yoke body has a lateral leg, the end of which is disposable in the proximity of a chain. The device for measuring the magnetic flux density is connected to an analysis unit. To determine the elongation of the chain during operation, a partially closed magnetic circuit is formed, a voltage is applied to a coil disposed in the magnetic circuit, an alternating magnetic flux density is generated in the magnetic circuit by the movement of the chain through the partially closed magnetic circuit, the alternating magnetic flux density in the magnetic circuit is detected as a plurality of measured values, and a length value of the chain from the measured values is determined.