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. 16, 1999
Filed:
Jun. 09, 1997
Samuel N Fersht, Studio City, CA (US);
Litton Systems, Inc., Woodland Hills, CA (US);
Abstract
A fiber optic accelerometer includes a ring that is twistably-responsive to an orthogonally-directed acceleration force. The ring is mounted by means of either an inner or an outer peripheral flange comprising an annular washer to one of two concentric walls of a disk-like casing. The walls apportion the interior of the casing into a disk-like central section and a surrounding annular section. The ring is appropriately flange-mounted and proportioned to present a moment of inertial that subjects the ring to twisting in the presence of acceleration along the sensitive input axis. Flat spiral coils of optical fiber are fixed to the top and bottom of the ring. Each coil forms a portion of the leg of an interferometer for generating a signal responsive to the acceleration input.