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:
Aug. 25, 2026
Filed:
Jul. 06, 2022
Schenck Rotec Gmbh, Darmstadt, DE;
Matthias Hartnagel, Alsbach-Haehnlein, DE;
Schenck RoTec GmbH, Darmstadt, DE;
Abstract
In a method for measuring the expansion of a rotating rotor on the basis of the rotor rotational speed, a first distance sensor is arranged at a distance to the rotor surface, the distance sensor contactlessly detecting the distance between the rotor surface and the first distance sensor in a time-based manner and generating first time-based electric distance signals. A zero mark sensor scans zero marks applied onto the rotor in a time-based manner. A second distance sensor is arranged on a reference surface which is remote from the first distance sensor in the axial direction of the rotor and from which the expansion and surface profile are identified. In order to eliminate disturbance variables, the signals detected by the second distance sensor can be calculated together with those of the first distance sensor.