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. 04, 1998
Filed:
Feb. 01, 1995
Applicant:
Inventors:
Claude Oudet, Besancon, FR;
Daniel Prudham, Thise, FR;
Assignee:
Moving Magnet Technologie SA, Besancon, FR;
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ; G01R / ; H01L / ;
U.S. Cl.
CPC ...
3242072 ; 32420725 ;
Abstract
A magnetic position sensor having a thin tubular-shaped permanent magnet that is integral with a coupling shaft. The permanent magnet is mobile in rotation in a main air gap between two parts made of a soft magnetic material. One of the parts is formed by a stator having a secondary air gap in which a Hall probe is housed. The stator is placed coaxially on the inside of the tubular-shaped permanent magnet, with the other magnetic part including a coaxial tubular yoke with the tubular-shaped permanent magnet and defining, with the stator, a cylindrical main air gap.