Device for measuring a phase shift which is not reciprocal produ

Details Device for measuring a phase shift which is not reciprocal produ Device for measuring a phase shift which is not reciprocal produ

1981-10-06

1991-10-15

Buczinski, Stephen C.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356349, G01B 902

Patent

active

050569198

ABSTRACT:
A ring-shaped interferometer device containing optical means for phase shifting which act on the rays passing through the rings, these means containing an oscillator which delivers a periodic voltage of frequency 1/2.tau., in which .tau. is the time taken by a ray to pass through the ring and a saw-tooth generator whose resonant frequency is slaved to the non reciprocal phase shift.

REFERENCES:
patent: 3512890 (1970-05-01), McLaughlin
patent: 3743969 (1973-07-01), Hutchings
patent: 4265541 (1981-05-01), Leclerc et al.
patent: 4352563 (1982-10-01), McLandrich

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