Passive ring laser rate of turn devices

Details Passive ring laser rate of turn devices Passive ring laser rate of turn devices

1979-11-29

1981-06-23

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1964

Patent

active

042747422

ABSTRACT:
Passive ring resonators utilize counter-rotational beams of electromagnetic energy to sense the rate of rotation of the passive ring through detecting a consequence of the shift in resonator frequency induced by such rotation. The clockwise and counter-clockwise resonant frequencies are oscillated between respective first and second values. Detectors produce signals indicative of the amplitudes of the first and second beams. Algebraic combinations of the amplitude signals are used to generate a rotational rate signal.

REFERENCES:
patent: 4135822 (1979-01-01), Ezekiel
"Passive Ring Resonator Laser Gyroscope," Ezekiel et al., Applied Physics Letters, vol. 30, No. 9, May 1, 1977, pp. 478-480.

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