公开(公告)号：AU2006299729A1

公开(公告)日：2007-04-12

申请号：AU2006299729

申请日：2006-08-31

Applicant: TECH RESOURCES PTY LTD

Inventor： WINTERFLOOD JOHN ,  MANN ANTHONY GORDON ,  KANN FRANK JOACHIM VAN

IPC: G01V7/16

Abstract: 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 second mount has a first part (25), a second part (26) and a third part (27). The parts (25 and 26) are connected by a second flexure web (37) and the parts (26 and 27) are connected by a third flexure web (35). The bars (41 and 42) are located in housings (45 and 47) and form a monolithic structure with the housings (45 and 47) respectively. The housings (45 and 47) are connected to opposite sides of the second mount section 20. The bars (41 and 42) are connected to their respective housings by flexure webs (59). Transducers (71) are located in proximity to the bars for detecting movement of the bars to in turn enable the gravitational gradient tensor to be measured.

公开(公告)号：AU2006299727A1

公开(公告)日：2007-04-12

申请号：AU2006299727

申请日：2006-08-31

Applicant: TECH RESOURCES PTY LTD

Inventor： WINTERFLOOD JOHN ,  KANN FRANK JOACHIM VAN

IPC: G01V7/16

Abstract: 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 second mount has a first part (25), a second part (26) and a third part (27). The parts (25 and 26) are connected by a second flexure web (37) and the parts (26 and 27) are connected by a third flexure web (35). The bars (41 and 42) are located in housings (45 and 47) and form a monolithic structure with the housings (45 and 47) respectively. The housings (45 and 47) are connected to opposite sides of the second mount section 20. The bars (41 and 42) are connected to their respective housings by flexure webs (59). Transducers (71) are located in proximity to the bars for detecting movement of the bars to in turn enable the gravitational gradient tensor to be measured.

公开(公告)号：AP2854A

公开(公告)日：2014-02-28

申请号：AP2010005519

申请日：2009-09-25

Applicant: TECH RESOURCES PTY LTD

Inventor： KANN FRANK JOACHIM VAN

IPC: G01V7/02

Abstract: The present disclosure provides a gravity gradiometer for detecting a gravity gradient. The gravity gradiometer comprises at least two sensor masses that are pivotable about respective axes and each experience a change in torque in response to a change in gravity gradient whereby the at least two sensor masses move relative to each other in response to the change in gravity gradient and wherein a signal indicative of the gravity gradient is generated in response to the relative movement of the at least two sensor masses. Further, the gravity gradiometer comprises an acceleration sensor for sensing an acceleration associated with an external acceleration applied to the gravity gradiometer. The gravity gradiometer also comprises an actuator for generating an adjustment force that is dependent on an acceleration sensed by the acceleration sensor. The adjustment force is also dependent on a mechanical response parameter associated with at least one of the at least two sensor masses. The adjustment force is applied such that a difference between the magnitudes of the torques experienced by the at least two sensor masses in response to the change in gravity gradient is reduced.

公开(公告)号：AU2006299725B2

公开(公告)日：2011-03-24

申请号：AU2006299725

申请日：2006-08-31

Applicant: TECH RESOURCES PTY LTD

Inventor： KANN FRANK JOACHIM VAN ,  WINTERFLOOD JOHN

IPC: G01V7/16

Abstract: 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 second mount has a first part (25), a second part (26) and a third part (27). The parts (25 and 26) are connected by a second flexure web (37) and the parts (26 and 27) are connected by a third flexure web (35). The bars (41 and 42) are located in housings (45 and 47) and form a monolithic structure with the housings (45 and 47) respectively. The housings (45 and 47) are connected to opposite sides of the second mount section 20. The bars (41 and 42) are connected to their respective housings by flexure webs (59). Transducers (71) are located in proximity to the bars for detecting movement of the bars to in turn enable the gravitational gradient tensor to be measured.

公开(公告)号：MX2011000111A

公开(公告)日：2011-02-25

申请号：MX2011000111

申请日：2009-09-25

Applicant: TECH RESOURCES PTY LTD

Inventor： KANN FRANK JOACHIM VAN

IPC: G01V7/02

Abstract: La presente descripción proporciona un gradiómetro de gravedad para detectar un gradiente de gravedad. El gradiámetro de gravedad comprende al menos dos masas de sensor que pueden girar sobre ejes respectivos y cada una experimenta un cambio en torsión en respuesta a un cambio en el gradiente de gravedad, con lo cual al menos dos masas de sensor se mueven con relación una a la otra en respuesta al cambio en el gradiente de gravedad y en donde se genera una señal indicativa del gradiente de gravedad en respuesta al movimiento relativo de al menos dos masas de sensor. Además, el gradiómetro de gravedad comprende un sensor de aceleración para percibir una aceleración asociada con una aceleración externa aplicada al gradiómetro de gravedad. El gradiómetro de gravedad también comprende un accionador para generar una fuerza de ajuste que depende de una aceleración percibida mediante el sensor de aceleración. La fuerza de ajuste también depende de un parámetro de respuesta mecánica asociado con al menos una de al menos dos masas de sensor. La fuerza de ajuste se aplica para que se reduzca una diferencia entre las magnitudes de las torsiones experimentadas mediante al menos dos masas de sensor en respuesta al cambio en el gradiente de gravedad.

公开(公告)号：MX2011000110A

公开(公告)日：2011-02-25

申请号：MX2011000110

申请日：2009-09-25

Applicant: TECH RESOURCES PTY LTD

Inventor： KANN FRANK JOACHIM VAN

IPC: G01V7/16

Abstract: La presente descripción proporciona un gradiómetro de gravedad que comprende un detector para detectar un gradiente de gravedad. El detector comprende al menos un elemento de percepción móvil y que se dispone para generar una señal en respuesta a un cambio en el gradiente de gravedad. El gradiómetro de gravedad también comprende una estructura de soporte para soportar el detector en una aeronave y un componente que se dispone para reducir la transmisión de una aceleración de aeronave al detector. Al menos un elemento de percepción móvil y la estructura de soporte, juntos, se disponen para reducir una influencia de la aceleración de aeronave en la señal por un factor de al menos 107 cuando el gradiómetro de gravedad es aerotransportado y expuesto a la aceleración de aeronave.

公开(公告)号：AP2010005518A0

公开(公告)日：2010-12-31

申请号：AP2010005518

申请日：2009-09-25

Applicant: TECH RESOURCES PTY LTD

Inventor： KANN FRANK JOACHIM VAN

IPC: A61K31/55 ,  A61P31/14 ,  C07D515/18 ,  G01V7/02

Abstract: The present disclosure provides a gravity gradiometer which comprises a component comprising a detector for generating a signal in response to a change in gravity gradient experienced by the gravity gradiometer. The gravity gradiometer also comprises a support structure for supporting the component in a manner such that the component is movable relative to the support structure. Further, the gravity gradiometer comprises an acceleration sensor for sensing an acceleration associated with an external acceleration when the gravity gradiometer is exposed to the external acceleration. In addition, the gravity gradiometer comprises an actuator for generating a force on the component as a function of both an acceleration sensed by the acceleration sensor and a response parameter associated with the component. The actuator is arranged to apply a generated force such that transmission of the acceleration from the support structure to the component is reduced.

公开(公告)号：AP2010005517A0

公开(公告)日：2010-12-31

申请号：AP2010005517

申请日：2009-09-25

Applicant: TECH RESOURCES PTY LTD

Inventor： KANN FRANK JOACHIM VAN

IPC: G01V7/16 ,  B03D101/06 ,  B03D103/02

Abstract: The present disclosure provides a gravity gradiometer that comprises a detector for detecting a gravity gradient. The detector comprises at least one movable sensing element and that is arranged to generate a signal in response to a change in gravity gradient. The gravity gradiometer also comprises a support structure for supporting the detector in an aircraft and a component that is arranged to reduce transmission of an aircraft acceleration to the detector. The at least one movable sensing element and the support structure together are arranged to reduce an influence of the aircraft acceleration on the signal by a factor of at least 107 when the gravity gradiometer is airborne and exposed to the aircraft acceleration.

公开(公告)号：AU2009295359A1

公开(公告)日：2010-04-01

申请号：AU2009295359

申请日：2009-09-25

Applicant: TECH RESOURCES PTY LTD

Inventor： KANN FRANK JOACHIM VAN

IPC: G01V7/02

Abstract: The present disclosure provides a gravity gradiometer for detecting a gravity gradient. The gravity gradiometer comprises at least two sensor masses that are pivotable about respective axes and each experience a change in torque in response to a change in gravity gradient whereby the at least two sensor masses move relative to each other in response to the change in gravity gradient and wherein a signal indicative of the gravity gradient is generated in response to the relative movement of the at least two sensor masses. Further, the gravity gradiometer comprises an acceleration sensor for sensing an acceleration associated with an external acceleration applied to the gravity gradiometer. The gravity gradiometer also comprises an actuator for generating an adjustment force that is dependent on an acceleration sensed by the acceleration sensor. The adjustment force is also dependent on a mechanical response parameter associated with at least one of the at least two sensor masses. The adjustment force is applied such that a difference between the magnitudes of the torques experienced by the at least two sensor masses in response to the change in gravity gradient is reduced.

公开(公告)号：AU2007249125A1

公开(公告)日：2008-06-05

申请号：AU2007249125

申请日：2007-08-14

Applicant: TECH RESOURCES PTY LTD

Inventor： WINTERFLOOD JOHN ,  KANN FRANK JOACHIM VAN

IPC: G01V7/00