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:
Mar. 13, 1984
Filed:
Aug. 19, 1980
Gerhard Schiffner, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A sensor is disclosed which utilizes a ring interferometer for receiving light with a polarizer provided in each of the paths of the superimposed beams exiting the interferometer so that only light polarized in a fixed direction relative to the direction of polarization of the light being coupled into the interferometer is detected. The sensor is particularly adapted to determining influences such as pressures, tensions, torsion, and heat in addition to rotation. In one embodiment, the Faraday effect is utilized to compensate for transit time differences and the amount of energy required to compensate by the Faraday effect is measured to determine the amount of influence.