公开(公告)号：PE20080958A1

公开(公告)日：2008-07-10

申请号：PE2007001228

申请日：2007-09-13

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  WINTERFLOOD JOHN

IPC: G01B7/14

Abstract: QUE COMPRENDE: a)AL MENOS UNA MASA DE SENSOR PARA EL MOVIMIENTO EN RESPUESTA AL GRADIENTE DE GRAVEDAD; b)UN ACOPLE DE PIVOTE PARA ACOPLAR LA MASA PARA EL MOVIMIENTO DE PIVOTE; c)UN PRIMER TRANSDUCTOR UBICADO EN UNA POSICION DE (a); d)UN SEGUNDO TRANSDUCTOR UBICADO EN UNA SEGUNDA POSICION DE (a), DE MODO QUE CUANDO (a) SE MUEVE, ELLA SE MUEVE HACIA O APARTE DE (c) Y (d) POR LA MISMA CANTIDAD; e)AL MENOS UNO DE (c) Y (d) QUE COMPRENDEN UNA PRIMERA Y UNA SEGUNDA BOBINA EN PARALELO A LA PRIMERA; Y, f)UN INTERRUPTOR PARA PERMITIR EL SUMINISTRO DE UNA CORRIENTE, AL MENOS, A UN TRANSDUCTOR PARA QUE LA CORRIENTE SEA PROPORCIONADA ENTRE LAS BOBINAS A FIN DE CREAR UNA BOBINA VIRTUAL EN UNA POSICION ENTRE LAS BOBINAS. (a) ESTA CONECTADO EN PARALELO A (b), (b) COMPRENDE UNA TERCERA BOBINA, LOS TRANSDUCTORES ESTAN CONECTADOS A UN DISPOSITIVO SQUID PARA SUMINISTRAR UNA MEDIDA DEL CAMBIO EN CORRIENTE EN LOS TRANSDUCTORES. (c) COMPRENDE UNA ESTRUCTURA DE PELICULA DELGADA CON UNA PRIMERA CAPA QUE TIENE UNA PRIMERA BOBINA DE RESINA FINA DE GRAN INDUCTANCIA QUE TIENE UNA GRAN CANTIDAD DE VUELTAS PARA LLEVAR UNA CORRIENTE BAJA, Y UNA SEGUNDA CAPA CON UNA SEGUNDA BOBINA SENSORA DE RESINA GRUESA DE INDUCTANCIA MAS BAJA QUE TIENE MENOS VUELTAS PARA LLEVAR UNA CORRIENTE MAS ELEVADA. LAS BOBINAS DE RESINA FINA Y GRUESA ESTAN FORMADAS SOBRE UNA SUPERFICIE COMUN DE UN SUBSTRATO DE SILICIO. LA ESTRUCTURA DE PELICULA INCLUYE UNA BOBINA INDUCTORA DE RESISTENCIA FIJA ADICIONAL

公开(公告)号：PE09592008A1

公开(公告)日：2008-07-10

申请号：PE0012292007

申请日：2007-09-13

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  WINTERFLOOD JOHN

IPC: G01V7/00

CPC classification number: G01V7/04

Abstract: QUE COMPRENDE: a) AL MENOS UNA MASA SENSORA DE MOVIMIENTO EN RESPUESTA AL GRADIENTE DE GRAVEDAD; Y, b) AL MENOS UN TRANSDUCTOR UBICADO EN FORMA ADYACENTE A (a), PARA MEDIR EL MOVIMIENTO DE (a), COMPUESTO POR UNA ESTRUCTURA DE PELICULA FINA QUE TIENE: i) UNA PRIMERA CAPA QUE TIENE UNA PRIMERA BOBINA DE PASO CORTO DE GRAN INDUCCION CON GRAN NUMERO DE VUELTAS PARA CONDUCIR UNA CORRIENTE BAJA; ii) UNA SEGUNDA CAPA QUE TIENE UNA BOBINA SENSORA DE PASO LARGO DE INDUCCION MAS BAJA CON MENOS VUELTAS PARA CONDUCIR UNA CORRIENTE MAS ALTA, DONDE LA BOBINA FORMA UN TRANSFORMADOR PARA AUMENTAR LA CORRIENTE QUE FLUYE A TRAVES DE LA PRIMERA BOBINA; iii) UNA CAPA AISLANTE ENTRE LAS BOBINAS; iv) UNA CAPA QUE FORMA UNA PLACA CONDENSADORA QUE SE UTILIZA EN UN CIRCUITO DE BALANCEO PARA BALANCEAR A (a) Y QUE ESTA DISPUESTA EN FORMA CONCENTRICA CON LAS BOBINAS; Y, v) OTRA BOBINA INDUCTORA DE RESISTENCIA FIJA, SEPARADA DE LA SEGUNDA BOBINA POR UNA CAPA DE AISLACION Y CONECTADA EN PARALELO A LA SEGUNDA BOBINA PARA CONDUCIR CUALQUIER CORRIENTE MAYOR PARA IMPEDIR QUE ESAS CORRIENTES FLUYAN HACIA EL DISPOSITIVO SQUID. LA SEGUNDA BOBINA SUMINISTRA CORRIENTE A UN DISPOSITIVO SQUID PARA DAR UNA MEDIDA DEL COMPONENTE DEL TENSOR DE GRADIENTE DE GRAVEDAD. LAS BOBINAS SE FORMAN EN UNA SUPERFICIE COMUN DE SUSTRATO DE SILICONA, Y LA PRIMERA BOBINA ESTA CONECTADA EN FORMA PARALELA A LA BOBINA DE INDUCCION DE RESISTENCIA FORMADA EN LA SUPERFICIE OPUESTA DEL SUSTRATO

公开(公告)号：PE09582008A1

公开(公告)日：2008-07-10

申请号：PE0012282007

申请日：2007-09-13

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  WINTERFLOOD JOHN

IPC: G01B7/14

CPC classification number: G01V7/04

Abstract: QUE COMPRENDE: a)AL MENOS UNA MASA DE SENSOR PARA EL MOVIMIENTO EN RESPUESTA AL GRADIENTE DE GRAVEDAD; b)UN ACOPLE DE PIVOTE PARA ACOPLAR LA MASA PARA EL MOVIMIENTO DE PIVOTE; c)UN PRIMER TRANSDUCTOR UBICADO EN UNA POSICION DE (a); d)UN SEGUNDO TRANSDUCTOR UBICADO EN UNA SEGUNDA POSICION DE (a), DE MODO QUE CUANDO (a) SE MUEVE, ELLA SE MUEVE HACIA O APARTE DE (c) Y (d) POR LA MISMA CANTIDAD; e)AL MENOS UNO DE (c) Y (d) QUE COMPRENDEN UNA PRIMERA Y UNA SEGUNDA BOBINA EN PARALELO A LA PRIMERA; Y, f)UN INTERRUPTOR PARA PERMITIR EL SUMINISTRO DE UNA CORRIENTE, AL MENOS, A UN TRANSDUCTOR PARA QUE LA CORRIENTE SEA PROPORCIONADA ENTRE LAS BOBINAS A FIN DE CREAR UNA BOBINA VIRTUAL EN UNA POSICION ENTRE LAS BOBINAS. (a) ESTA CONECTADO EN PARALELO A (b), (b) COMPRENDE UNA TERCERA BOBINA, LOS TRANSDUCTORES ESTAN CONECTADOS A UN DISPOSITIVO SQUID PARA SUMINISTRAR UNA MEDIDA DEL CAMBIO EN CORRIENTE EN LOS TRANSDUCTORES. (c) COMPRENDE UNA ESTRUCTURA DE PELICULA DELGADA CON UNA PRIMERA CAPA QUE TIENE UNA PRIMERA BOBINA DE RESINA FINA DE GRAN INDUCTANCIA QUE TIENE UNA GRAN CANTIDAD DE VUELTAS PARA LLEVAR UNA CORRIENTE BAJA, Y UNA SEGUNDA CAPA CON UNA SEGUNDA BOBINA SENSORA DE RESINA GRUESA DE INDUCTANCIA MAS BAJA QUE TIENE MENOS VUELTAS PARA LLEVAR UNA CORRIENTE MAS ELEVADA. LAS BOBINAS DE RESINA FINA Y GRUESA ESTAN FORMADAS SOBRE UNA SUPERFICIE COMUN DE UN SUBSTRATO DE SILICIO. LA ESTRUCTURA DE PELICULA INCLUYE UNA BOBINA INDUCTORA DE RESISTENCIA FIJA ADICIONAL

公开(公告)号：CA2691032A1

公开(公告)日：2008-05-29

申请号：CA2691032

申请日：2007-08-14

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM

IPC: G01V7/16

Abstract: The present invention provides a gravity gradiometer for measuring components of the gravity gradient tensor. The gravity gradiometer comprises at least one sensor mass for movement in response to a gravity gradient. The gravity gradiometer also comprises a pivotal coupling enabling the movement of the at least one sensor mass about an axis. Further, the gravity gradiometer comprises a plurality of capacitors. Each capacitor has first and second capacitor elements positioned opposite each other so that a gap is defined between respective first and second capacitor elements. The capacitors are arranged so that movement of the at least one sensor mass results in a change in the gap between respective first and second capacitor elements. At least one of the capacitor elements has at least two separate capacitor portions arranged so that separate voltages can be applied to the capacitor portions.

公开(公告)号：CA2690933A1

公开(公告)日：2008-05-29

申请号：CA2690933

申请日：2007-08-14

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM

IPC: G01V7/16

Abstract: The present invention provides a gravity gradiometer for measuring components of the gravity gradient tensor. The gravity gradiometer comprises at least one sensor mass for movement in response to a gravity gradient and a pivotal coupling enabling the movement of the at least one sensor mass about an axis. Further, the gravity gradiometer comprises a constant charge capacitor that is arranged so that the movement of the at least one sensor mass generates a change in a voltage across the constant charge capacitor.

公开(公告)号：CA2598635A1

公开(公告)日：2007-04-12

申请号：CA2598635

申请日：2006-08-31

Applicant: TECH RESOURCES PTY LTD

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

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：CA2598626A1

公开(公告)日：2007-04-12

申请号：CA2598626

申请日：2006-08-31

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  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：CA2690958C

公开(公告)日：2015-06-30

申请号：CA2690958

申请日：2007-08-14

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM

IPC: G01V7/16

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.

公开(公告)号：AU2011235600B2

公开(公告)日：2014-09-25

申请号：AU2011235600

申请日：2011-03-29

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM

IPC: G01V7/16

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.

公开(公告)号：AU2009295359B2

公开(公告)日：2014-02-13

申请号：AU2009295359

申请日：2009-09-25

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM

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 senor. 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 senor masses in response to the change in gravity gradient is reduced.