US 5606414
INTERFEROMETRIC SHIP'S HEADING REFERENCE SYSTEM
Assignee
SPERRY CORPORATION
Filed
Apr 1, 1983
Granted
Feb 25, 1997
Location
CONCORD MA US
Abstract
Two Sagnac interferometers are mounted on board a ship with their axes in a horizontal plane. The axis of one interferometer is aligned in a fore-aft direction whereas the axis of the other interferometer is aligned athwartship. The output signals of the two interferometers are combined mathematically so as to cancel the effects of the ship's latitude and thus provide an output signal independent of this parameter.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 26, 1985
Rescinded
Mar 28, 1996
Duration
11 years
Inventor
- 1HENRY T. MINDEN
Record Details
- Patent number
- US 5606414
- Application
- 06481134
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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SPERRY CORPORATIONBack to patent indexSource: USPTO 35 USC §181 secrecy order records