公开(公告)号：CA2598625C

公开(公告)日：2013-11-19

申请号：CA2598625

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 first axis. The second mount has first part (25), a second part (26) and a third part (27). The parts (25 and 26) are connected by second flexure web (37) and the parts (26 and 27) are connected by 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).

公开(公告)号：CA2598628C

公开(公告)日：2013-10-15

申请号：CA2598628

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 first axis. The second mount has first part (25), a second part (26) and a third part (27). The parts (25 and 26) are connected by second flexure web (37) and the parts (26 and 27) are connected by 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).

公开(公告)号：CA2598626C

公开(公告)日：2013-10-15

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 first axis. The second mount has first part (25), a second part (26) and a third part (27). The parts (25 and 26) are connected by second flexure web (37) and the parts (26 and 27) are connected by 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).

公开(公告)号：AU2007249125B2

公开(公告)日：2013-07-04

申请号：AU2007249125

申请日：2007-08-14

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  WINTERFLOOD JOHN

IPC: G01V7/00

Abstract: Abstract The present invention provides a gravity gradiometer for 5 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 movement in response to a gravity gradient. 10 The gravity gradiometer also comprises a transducer that is arranged so that the movement of the at least one sensor mass relative to a portion of the transducer generates a transducer signal. Further, the gravity gradiometer comprises an electrical feedback loop arranged 15 to direct an electrical signal to the actuator of the external support structure. The gravity gradiometer is arranged so that an influence of an external angular acceleration on the rotation of the housing is reduced by the actuator when the transducer generates a transducer 20 signal effected by the external angular acceleration on the gravity gradiometer.

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：BRPI0702880A2

公开(公告)日：2011-03-22

申请号：BRPI0702880

申请日：2007-08-17

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  WINTERFLOOD JOHN

IPC: G01V7/00 ,  G01V7/10

Abstract: 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 a stop comprises a pair of abutment services defined by a cut prevent movement of the sensor masses beyond the elastic limit of the flexure web.

公开(公告)号：BRPI0702879A2

公开(公告)日：2011-03-15

申请号：BRPI0702879

申请日：2007-08-17

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  WINTERFLOOD JOHN

IPC: G01V7/16

公开(公告)号：NZ560700A

公开(公告)日：2011-02-25

申请号：NZ56070006

申请日：2006-08-31

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  WINTERFLOOD JOHN

IPC: G01V7/16

Abstract: Disclosed is a gravity gradiometer for measuring components of a gravitational gradient tensor. The gradiometer comprises: a first housing (45); a first mass (41) forming one part of a pair of masses; and a first flexure web (59) located on a peripheral edge of the first mass. The flexure web pivotally connects the first mass with the first housing for movement there between in response to differences in a gravitational field so that signals can be produced indicative of components of the gravitational gradient tensor. The first mass has a non-zero quadruple moment with a centre of mass located at the flexure web and the first mass is chevron-shaped with first and second arms extending from the centre of mass.

公开(公告)号：AR062667A1

公开(公告)日：2008-11-26

申请号：ARP070103924

申请日：2007-09-06

Applicant: TECH RESOURCES PTY LTD

Inventor： VAN KANN FRANK JOACHIM ,  WINTERFLOOD JOHN

IPC: G01V7/00

Abstract: Se da a conocer un interruptor térmico al igual que un gradiometro provisto de un interruptor térmico. Dicho interruptor está formado por un material no magnético, como ser un material semiconductor. El material semiconductor puede proporcionarse en la forma de un dispositivo con efecto Hall. Se dispone los interruptores térmicos en el gradiometro en una placa de circuito impreso 856. La placa 850 tiene regletas conductoras 856 conectadas a las regletas conductoras de un sensor 71 por los puentes 852. El interruptor térmico está conectado en el lado opuesto de la placa de circuito impreso 850 con las regletas 856 y la circuitería de procesamiento 859. Se dispone de un sustrato de cobre 865 en el mismo lado de la placa de circuito impreso que el interruptor térmico 57, para llevar el calor fuera del interruptor térmico 570 cuando se cierra el interruptor térmico.

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