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. 06, 1981
Filed:
Dec. 18, 1978
Applicant:
Inventors:
Alfred Papp, Munich, DE;
Hauke Harms, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
324 96 ; 3241 / ; 324244 ;
Abstract
A method is described for magneto-optical current measurements using a linearly polarized light beam in which the light beam is alternatingly polarized by polarization modulation at a given frequency in two orthogonal directions and the intensities of two signals corresponding to the two states of polarization are picked up sequentially at the frequency of the modulating signal and are processed simultaneously, eliminating the noise component of the measurement signal. The method is particularly useful for the measurement of currents in high voltage systems.