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. 19, 2001
Filed:
Aug. 04, 1999
Reto Schob, Volketswil, CH;
Natale Barletta, Zürich, CH;
Other;
Abstract
In a method for the determination of the radial position of a permanent magnetic rotor (,) in an electromagnetic rotary drive which is designed as a bearing-free motor with a stator (,) and the magnetically journalled rotor (,) the magnetic flux which is produced by the rotor (,) is determined by means of sensors (LS,, LS,, LS,) in the space between the rotor (,) and the stator (,) at least at two different measurement locations. The radial position of the rotor (,) is established with the help of the magnetic flux which is determined at the measurement locations and with the help of the magnetic flux which results at the measurement locations when the rotor (,) is arranged so as to be centered. Furthermore, a sensor arrangement for the determination of the radial position of the permanent magnetic rotor is proposed.