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. 12, 1977
Filed:
Dec. 15, 1975
Gunther Sepp, Ottobrunn, DT;
Gunthard Born, Taufkirchen, DT;
Messerschmitt-Bolkow-Blohm GmbH, Munich, DT;
Abstract
In a laser gyroscope it is desirable for precision operation to eliminate or effectively compensate temperature variations, as well as manufacturing tolerances. To this end the present laser gyroscope has two ring lasers physically arranged so close to each other that there is an optimal thermic contact between the two ring lasers. Temperature sensors are arranged in contact with the resonator circumference to control a piezoelectric resonator tuning device in response to temperature variations to compensate the same. The modulators of the lasers are periodically switched, for example, with the aid of Faraday cells to reverse the travel direction of the travelling waves to thereby compensate for manufacturing tolerances, and any remaining temperature variations.