Method and apparatus for measuring gravity with lever arm correc

Details Method and apparatus for measuring gravity with lever arm correc Method and apparatus for measuring gravity with lever arm correc

1996-08-14

1998-03-17

Oda, Christine K.

Measuring and testing

Gravitational determination

G01V 716

Patent

active

057289352

ABSTRACT:
The gravimetry apparatus includes two rigidly connected accelerometer triads and a global positioning system antenna defining a kinematic reference point. The apparatus has a specific layout where the nominal center of the accelerometer triads and the kinematic reference point are collinear and the corresponding accelerometers of the two triads are parallel. In this gravimetry system, the lever arm correction is measured internally and the magnitude of gravity is calculated without the need for stabilized platforms or measurement of the spatial orientation of the gravimeter.

REFERENCES:
patent: 3474672 (1969-10-01), La Coste et al.
patent: 4435981 (1984-03-01), Carson et al.
patent: 4550601 (1985-11-01), Evans
patent: 5357802 (1994-10-01), Hofmeyer
patent: 5402340 (1995-03-01), White
UCGE Reports, No. 20067,Czompo, Jozsef, "Airborne scalar Gravimetry System Errors in the Spectral Domain", University of Calgary, May 1994.
Boedecker, G. et al., "Accelerator/GPS Integration for Strapdown AirborneGravimetry: First Test Results", `Gravity and Geoid` Meeting Graz, Sep. 1994.

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