GRAVITY GRADIOMETER WITH CORRECTION OF EXTERNAL DISTURBANCE
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United States of America Patent
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Issued Date -
Mar 7, 2013
app pub date -
Mar 29, 2011
filing date -
Mar 29, 2010
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Abandoned
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Abstract
The present disclosure provides a method of detecting a change in gravity gradient using a gravity gradiometer. The gravity gradiometer comprises a detector for detecting the change in gravity gradient. The gravity gradiometer further comprises a sensor for generating a disturbance signal in response to an external disturbance. The method comprises the steps of exposing the gravity gradiometer to the external disturbance during operation of the gravity gradiometer. Further, the method comprises the steps of detecting the disturbance signal and receiving an output signal from the detector of the gravity gradiometer. The method also comprises the step of numerically correcting the output signal for an impact that a component of the gravity gradiometer experiences, as a consequence of the external disturbance using a response parameter that associates the external disturbance with a disturbance experienced by that component.
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