Interferometric ship's heading reference system

Details Interferometric ship's heading reference system Interferometric ship's heading reference system

1983-04-01

1997-02-25

Buczinski, Stephen C.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

33321, 364453, 364454, G01B 902, G01C 1900, G01C 2100, G01P 1508

Patent

active

056064144

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.

REFERENCES:
patent: 3102953 (1963-09-01), Wallace
patent: 4315693 (1982-02-01), Walker
patent: 4343035 (1982-08-01), Tanner

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