Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1990-08-31
1998-12-29
Buczinski, Stephen C.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
372 94, G01B 902, H01S 3083
Patent
active
058546774
ABSTRACT:
An RLG OPTICAL NOISE INJECTOR places a random signal on a PZT driving one mirror controlling the optical path length (OPL) of a ring laser gyro (RLG) and the negative of the signal on a PZT driving a second mirror controlling the OPL. The OPL is therefore maintained constant while injecting random noise into the phase of the counterpropagating beams to avoid dynamic lock-in. Static lock-in may also be avoided by superposing an oscillatory signal on the random signal fed to the first PZT and the negative of the oscillatory signal on the random signal fed to the second PZT.
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Aronowitz Frederick
Trozpek Ludd A.
Buczinski Stephen C.
Hamann H. Frederick
Montanye George A.
Rockwell International Corporation
Streeter Tom
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