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:
Jul. 14, 1998
Filed:
Jul. 11, 1995
Applicant:
Inventor:
Johannes Beichler, Rodgau, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ; H01F / ;
U.S. Cl.
CPC ...
32420719 ; 32420724 ;
Abstract
A magnetic distance sensor for acquiring the position of a test subject has an elongated magnetic core that contains crystalline strips and amorphous strips. A measuring winding supplied by a constant current source generates respective voltages, directed oppositely relative to one another, in two coils, so that a differential voltage arises dependent on the position of the test subject. A distance sensor that is insensitive to unwanted magnetic fields is thus obtained.