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:
Apr. 18, 1989
Filed:
Sep. 04, 1987
Applicant:
Inventors:
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ; G02F / ;
U.S. Cl.
CPC ...
324244 ; 324260 ; 350377 ;
Abstract
A magnetic field measuring head comprises the following elements integrated into one and the same substrate: a light source, a light guide insensitive to the magnetic field, a layer of magnetic material which, when plunged into a magnetic field to be measured, causes the rotation of the plane of polarization of the light coming from the source, and a device to measure the rotation of the plane of polarization of the light.