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. 03, 2021
Filed:
Jul. 11, 2018
Siemens Aktiengesellschaft, Munich, DE;
Carsten Spindler, Remptendorf, DE;
Bernd Wedel, Moehrendorf, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method for locating a secondary part during use in a linear-motor-based system, wherein at least one primary part includes primary-part coils and is provided in the linear-motor-based system, the secondary part has a magnetic active part and the primary-part coils can be actuated via a drive current to achieve an advance of the secondary part, for locating the secondary part, the at least one primary part is energized via a primary current at a test frequency to induce a secondary current in at least one secondary-part winding provided on the secondary part and respective current responses of the primary-part coils are measured, where measured current changes in the current responses indicate the change in the inductance of the respective primary-part coil and a relative position of a secondary part to the respective primary-part coil.