Ring laser gravity gradiometer

Details Ring laser gravity gradiometer Ring laser gravity gradiometer

1980-01-11

1981-03-17

Gill, James J.

Measuring and testing

Gravitational determination

356349, G01V 704

Patent

active

042559693

ABSTRACT:
Gravity gradiometer including a ring laser cavity, two modulator elements in the path of the laser beam, and spaced masses attached to the modulator elements to provide a differential modulation of circular polarization modes proportional to the difference in gravity at the location of the two masses. In one form, a biasing element is added to shift the operating point of the laser system to improve performance.

REFERENCES:
patent: 3250133 (1966-05-01), Savet
patent: 3786681 (1974-01-01), Kiehn

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