Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 6, 2009
Patent Application Number
11851745
Date Filed
September 7, 2007
Patent Primary Examiner
Patent abstract
The present invention provides a method of tuning properties of a gravity gradiometer for measuring components of the gravity gradient tensor. The gravity gradiometer comprises a pair of first and second transversely arranged sensor masses that are arranged for movement about an axis and relative to each other in response to a gravity gradient. The gravity gradiometer further comprises first and second capacitors for sensing and influencing the movement of the first and second sensor masses. The method comprising applying a bias voltage to at least one of the capacitors for generating an electrostatic force which acts on one of the sensor masses and thereby influences the movement of that sensor mass.
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