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:
Jan. 07, 2003
Filed:
Jun. 06, 2001
Applicant:
Inventor:
Vincent Minier, Grenoble, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 3/100 ;
U.S. Cl.
CPC ...
G01R 3/100 ;
Abstract
A light beam output from a magneto-optical current transducer using the Faraday effect is divided into two output light beams. A first output light beam is applied, via an output polarizer, to a first optical input of a processing unit. A second output light beam is applied to a second optical input of the processing unit. The processing unit converts the two beams into electrical signals U and U , then computes a first quantity R=U /U , determines the AC component (R ) and the DC component (R ) of the first quantity and deduces therefrom a second quantity S=R /R enabling the electric current to be measured to be determined.