07581327 is referenced by 8 patents and cites 96 patents.

The present invention provides a gravity gradiometer which comprises at least one sensor mass suspended by a coupling which enables movement of the at least one sensor mass about an axis in response to a gravity gradient. Further, the gravity gradiometer comprises at least one transducer for generating an electrical signal in response to the movement of the at least one sensor mass relative to a component of the transducer and for influencing the movement of the at least one sensor mass. The gravity gradiometer also comprises electrical circuitry for receiving the electrical signal from the at least one transducer and for directing an actuating signal to the at least one transducer so that in use the at least one transducer functions as sensor and actuator.

Title
Gravity gradiometer
Application Number
11/851872
Publication Number
7581327 (B2)
Application Date
September 7, 2007
Publication Date
September 1, 2009
Inventor
John Winterflood
Nedlands
AU
Frank Joachim Van Kann
Nedlands
AU
Agent
Fish & Richardson P C
Assignee
Technological Recources
AU
IPC
G01V 7/16
G01C 9/14
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