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公开(公告)号：US20110138909A1
公开(公告)日：2011-06-16
申请号：US13001696
申请日：2009-09-25
IPC分类号： G01V7/02
摘要： 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.
摘要翻译： 本公开提供了一种重力梯度计，其包括用于检测重力梯度的检测器。 检测器包括至少一个可移动感测元件，并且被布置成响应于重力梯度的变化而产生信号。 重力梯度计还包括用于在飞行器中支撑检测器的支撑结构和被布置成减少飞机加速度传递到检测器的部件。 所述至少一个可移动检测元件和所述支撑结构一起设置成当所述重力梯度计机载并暴露于所述飞机加速度时，将所述飞行器加速度对所述信号的影响减小至少107。
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公开(公告)号：US07942054B2
公开(公告)日：2011-05-17
申请号：US12646110
申请日：2009-12-23
IPC分类号： G01V7/00
CPC分类号： G01V7/16
摘要： 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. The first mount section (10) has cut-outs (16) and the second mount section (20) has lugs (13) which pass through the cut-outs for connecting the first and second mount sections (10 and 20) in a Dewar (1).
摘要翻译： 公开了一种重力梯度计，其具有杆（41和42）形式的传感器，所述传感器支撑在具有第一安装部分（10）和第二安装部分（20）的安装件（5）上。 第一弯曲腹板（33）围绕第一轴线枢转地联接第一和第二安装部分。 第二安装件具有第一部分（25），第二部分（26）和第三部分（27）。 部分（25和26）通过第二弯曲腹板（37）连接，并且部件（26和27）通过第三弯曲腹板（35）连接。 杆（41和42）位于壳体（45和47）中并且分别与壳体（45和47）形成整体结构。 壳体（45和47）连接到第二安装部分20的相对侧。杆（41和42）通过弯曲腹板（59）连接到它们各自的壳体。 传感器（71）位于杆附近，用于检测杆的移动，从而使得能够测量重力梯度张量。 第一安装部分（10）具有切口（16），第二安装部分（20）具有穿过切口的凸耳（13），用于将第一和第二安装部分（10和20）连接在杜瓦 （1）。
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公开(公告)号：US07823449B2
公开(公告)日：2010-11-02
申请号：US11845303
申请日：2007-08-27
IPC分类号： G01V7/00
CPC分类号： G01V7/005
摘要： 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 are mounted on flexure webs. The webs are formed in separate elements to the housing and bars.
摘要翻译： 公开了一种用于形成用于梯度计的枢轴弯曲腹板的重力梯度计和方法。 梯度计具有支撑在壳体45和47中的测量棒41,43和用于测量棒的运动的换能器71，以提供重力梯度张量的指示。 杆41,43安装在弯曲腹板上。 腹板与壳体和杆形成分开的元件。
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公开(公告)号：US20100154537A1
公开(公告)日：2010-06-24
申请号：US12714634
申请日：2010-03-01
IPC分类号： G01V7/00
CPC分类号： G01V7/16
摘要： 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.
摘要翻译： 公开了一种重力梯度计，其具有杆（41和42）形式的传感器，所述传感器支撑在具有第一安装部分（10）和第二安装部分（20）的安装件（5）上。 第一弯曲腹板（33）围绕第一轴线枢转地联接第一和第二安装部分。 第二安装件具有第一部分（25），第二部分（26）和第三部分（27）。 部分（25和26）通过第二弯曲腹板（37）连接，并且部件（26和27）通过第三弯曲腹板（35）连接。 杆（41和42）位于壳体（45和47）中并且分别与壳体（45和47）形成整体结构。 壳体（45和47）连接到第二安装部分20的相对侧。杆（41和42）通过弯曲腹板（59）连接到它们各自的壳体。 传感器（71）位于杆附近，用于检测杆的移动，从而使得能够测量重力梯度张量。
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公开(公告)号：US07581327B2
公开(公告)日：2009-09-01
申请号：US11851872
申请日：2007-09-07
CPC分类号： G01V7/04
摘要： 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.
摘要翻译： 本发明提供了一种重力梯度计，其包括至少一个传感器质量块，该传感器质量块通过联接器悬挂，其能够响应于重力梯度使所述至少一个传感器质量块绕轴线移动。 此外，重力梯度计包括至少一个换能器，用于响应于至少一个传感器质量相对于换能器的部件的移动而产生电信号，并且用于影响至少一个传感器质量块的运动。 重力梯度计还包括用于从至少一个换能器接收电信号并用于将致动信号引导到至少一个换能器的电路，使得在使用中至少一个换能器用作传感器和致动器。
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公开(公告)号：US07571547B2
公开(公告)日：2009-08-11
申请号：US11845287
申请日：2007-08-27
CPC分类号： G01V7/04
摘要： 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 film structure having a first layer forming a fine pitch coil 510 and a second layer forming a coarse pitch coil 511. The layers are separated by an insulating layer. The coarse pitch coil 511 forms a transformer for stepping up the current flowing through the fine pitch coil 510 and the coarse pitch coil 511 supplies current to a SQUID device 367.
摘要翻译： 公开了一种重力梯度计，其具有以彼此正交布置的杆41和43的形式的传感器质量，以及换能器，用于响应于重力梯度张量的变化提供指示杆的运动的输出信号。 换能器由具有形成细间距线圈510的第一层和形成粗节距线圈511的第二层的薄膜结构形成。这些层由绝缘层分开。 粗音调线圈511形成用于升高流过细间距线圈510的电流的变压器，粗音调线圈511向SQUID器件367提供电流。
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公开(公告)号：US07562460B2
公开(公告)日：2009-07-21
申请号：US11845323
申请日：2007-08-27
CPC分类号： G01V7/04
摘要： 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 processing the signals. A connector is supplied for connecting the circuitry to external equipment which comprises a container 560 having a feed through filter 564, a three terminal cap 565, a relay 566 and an output terminal. The output terminal is connected to further RF attenuation which comprises a second connector 5b having parallel inductors and resistors.
摘要翻译： 公开了一种重力梯度计，其具有安装在壳体43和45中的一对传感器杆41,42。传感器71位于杆附近，用于响应于重力梯度张量来测量杆的运动。 来自换能器的信号被提供给用于处理信号的SQUID装置367。 提供用于将电路连接到外部设备的连接器，其包括具有通过过滤器564的馈送的容器560，三端子帽565，继电器566和输出端子。 输出端子连接到另外的RF衰减，其包括具有并联电感器和电阻器的第二连接器5b。
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公开(公告)号：US20080302180A1
公开(公告)日：2008-12-11
申请号：US11722050
申请日：2006-08-31
IPC分类号： G01V7/00
CPC分类号： G01V7/16
摘要： 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. The first mount section (10) has cut-outs (16) and the second mount section (20) has lugs (13) which pass through the cut-outs for connecting the first and second mount sections (10 and 20) in a Dewar (1).
摘要翻译： 公开了一种重力梯度计，其具有杆（41和42）形式的传感器，所述传感器支撑在具有第一安装部分（10）和第二安装部分（20）的安装件（5）上。 第一弯曲腹板（33）围绕第一轴线枢转地联接第一和第二安装部分。 第二安装件具有第一部分（25），第二部分（26）和第三部分（27）。 部分（25和26）通过第二弯曲腹板（37）连接，并且部件（26和27）通过第三弯曲腹板（35）连接。 杆（41和42）位于壳体（45和47）中并且分别与壳体（45和47）形成整体结构。 壳体（45和47）连接到第二安装部分20的相对侧。杆（41和42）通过弯曲腹板（59）连接到它们各自的壳体。 传感器（71）位于杆附近，用于检测杆的移动，从而使得能够测量重力梯度张量。 第一安装部分（10）具有切口（16），第二安装部分（20）具有穿过切口的凸耳（13），用于将第一和第二安装部分（10和20）连接在杜瓦 （1）。
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公开(公告)号：US20080302179A1
公开(公告)日：2008-12-11
申请号：US11722040
申请日：2006-08-31
IPC分类号： G01V7/00
CPC分类号： G01V7/16
摘要： 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. The sensor masses not only serve to provide measurements of the gravity gradient tensor but also provide signals indicative of angular movement of the mounting and therefore form one of a plurality of angular accelerometers for detecting angular movement so that control signals can be generated to stabilise the mounting (5).
摘要翻译： 公开了一种重力梯度计，其具有杆（41和42）形式的传感器，所述传感器支撑在具有第一安装部分（10）和第二安装部分（20）的安装件（5）上。 第一弯曲腹板（33）围绕第一轴线枢转地联接第一和第二安装部分。 第二安装件具有第一部分（25），第二部分（26）和第三部分（27）。 部分（25和26）通过第二弯曲腹板（37）连接，并且部件（26和27）通过第三弯曲腹板（35）连接。 杆（41和42）位于壳体（45和47）中并且分别与壳体（45和47）形成一个整体结构。 壳体（45和47）连接到第二安装部分20的相对侧。杆（41和42）通过弯曲腹板（59）连接到它们各自的壳体。 传感器（71）位于杆附近，用于检测杆的移动，从而使得能够测量重力梯度张量。 传感器质量不仅用于提供重力梯度张量的测量，而且还提供指示安装件的角度运动的信号，并因此形成用于检测角运动的多个角加速度计之一，从而可以产生控制信号以稳定安装 （5）。
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公开(公告)号：US20080173090A1
公开(公告)日：2008-07-24
申请号：US11845273
申请日：2007-08-27
IPC分类号： G01V7/10
CPC分类号： G01V7/04
摘要： A gravity gradiometer is described which comprises a pair of sensor bars 41, 43 arranged in housings 45, 47. Transducers 71 are arranged adjacent the bars 41, 43 for measuring movement of the bars in response to the gravity gradient tensor. At least one of the transducers has a sensing coil 510 and a capacitor plate 518a having a concentric arrangement with the sensing coil 510 for providing one plate of a capacitor used in a balancing circuit for measuring the balance of the sensor mass.
摘要翻译： 描述了一种重力梯度计，其包括布置在壳体45,47中的一对传感器杆41,43。 传感器71布置成邻近杆41,43，用于响应于重力梯度张量来测量杆的运动。 换能器中的至少一个具有感测线圈510和与感测线圈510同心配置的电容器板518a，用于提供用于测量传感器质量的平衡的平衡电路中使用的电容器的一个板。
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