1
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Resources, Fish & Richardson P C, September 8, 2009: US07584544 (17 worldwide citation)

The present invention provides a gravity gradiometer for measuring components of the gravity gradient tensor. The gravity gradiometer comprises a housing and a gimballed support structure with at least one actuator. The gravity gradiometer further comprises at least one sensor mass arranged for move ...


2
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Resources, Fish & Richardson P C, December 13, 2011: US08074515 (12 worldwide citation)

A gravity gradiometer is disclosed which has a sensor in the form of bars (41 and 42) which are supported on a mounting (5) which has a first mount section (10) and a second mount section (20). A first flexure web (33) pivotally couples the first and second mount sections about a first axis. The sec ...


3
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Resources, Fish & Richardson P C, July 21, 2009: US07562460 (9 worldwide citation)

A gravity gradiometer is disclosed which has a pair of sensor bars 41, 42 mounted in housings 43 and 45. Transducers 71 are located adjacent the bars for measuring movement of the bars in response to the gravity gradient tensor. Signals from the transducers are supplied to a SQUID device 367 for pro ...


4
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Resources, Fish & Richardson P C, November 2, 2010: US07823449 (8 worldwide citation)

A gravity gradiometer and method for forming a pivot flexure web for a gradiometer is disclosed. The gradiometer has measurement bars 41, 43 supported in housings 45 and 47 and transducers 71 for measuring movement of the bars to provide an indication of the gravity gradient tensor. The bars 41, 43 ...


5
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Recources, Fish & Richardson P C, September 1, 2009: US07581327 (8 worldwide citation)

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 generat ...


6
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Resources, Fish & Richardson P C, December 29, 2009: US07637153 (8 worldwide citation)

A gravity gradiometer is disclosed which comprises a pair of sensor masses arranged in housings. Transducers are provided for measuring movement of the sensor masses in response to the gravity gradient tensor. The masses are supported for movement by a flexure web between the mass and a support and ...


7
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Resources, Fish & Richardson P C, December 1, 2009: US07624635 (7 worldwide citation)

A heat switch 570 is disclosed as well as a gradiometer having the heat switch. The heat switch is formed from a non-magnetic material such as a semi-conducting material. The semi-conducting material may be provided by way of a Hall effect device. The heat switches are arranged in the gradiometer on ...


8
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Resources, Fish & Richardson P C, August 11, 2009: US07571547 (7 worldwide citation)

A gravity gradiometer is disclosed which has sensor masses in the forms of bars 41 and 43 arranged orthogonal to one another and transducers for providing an output signal indicative of movement of the bars in response to changes in the gravity gradient tensor. The transducers are formed from thin f ...


9
Frank Joachim Van Kann, John Winterflood: Gravity gradiometer. Technological Resources, Fish & Richardson P C, December 8, 2009: US07627954 (7 worldwide citation)

A gradiometer is disclosed which has a pair of sensor bars 41, 43 supported in housings 45, 47. Transducers 71 are located adjacent the bars 41, 43 to detect movement of the bars in response to the gravity gradient tensor. At least one of the transducers 71 comprises a first coil 510 and a second co ...


10
Frank Joachim Van Kann, John Winterflood: Actuatory and gravity gradiometer. Technological Resources, Fish & Richardson P C, November 2, 2010: US07823448 (6 worldwide citation)

A gravity gradiometer is disclosed which has a sensor in the form of bars (41 and 42) which are supported on a mounting (5) which has a first mount section (10) and a second mount section (20). A first flexure web (33) pivotally couples the first and second mount sections about a first axis. The sec ...