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1. 发明授权

US08909496B2 Gravity gradiometer and methods for measuring gravity gradients 有权
标题翻译：重力梯度计和重力梯度测量方法
公开(公告)号：US08909496B2
公开(公告)日：2014-12-09
申请号：US13399533
申请日：2012-02-17
申请人： Kieran A. Carroll , John Barry French , Keith Richard William Morrison
发明人： Kieran A. Carroll , John Barry French , Keith Richard William Morrison
IPC分类号： G01L25/00 , G01V7/06 , G06F11/30
CPC分类号： G01V7/06 , G01V7/00
摘要： Systems and methods for determining a bias-corrected value of at least one component of a gravity gradient tensor using a gravity gradiometer and a measurement bias of the gravity gradiometer wherein the measurement bias varies with time, by taking at least three measurements with the gravity gradiometer positioned in at least two orientations. Any gravity gradiometer can be used, including a Cross-Component Gravity Gradiometer (CCGG), an Orthogonal Quadrupole Responder (OQR), an In-Line Responder (ILR), a Diagonal-Component Gravity Gradiometer, or a Multi-Component Gravity Gradiometer (MCGG).
摘要翻译：用于使用重力梯度计和重力梯度计的测量偏差确定重力梯度张量的至少一个分量的偏差校正值的系统和方法，其中测量偏差随时间变化，通过使用重力梯度计进行至少三次测量定位在至少两个方向。可以使用任何重力梯度计，包括交叉分量重力格子辐射计（CCGG），正交四极杆响应器（OQR），在线响应器（ILR），对角线分量重力格子辐射计或多分量重力格子辐射计（ MCGG）。

2. 发明申请

US20120210783A1 GRAVITY GRADIOMETER AND METHODS FOR MEASURING GRAVITY GRADIENTS 有权
标题翻译： GRAVITY GRADIOMETER和测量GRAVITY梯度的方法
公开(公告)号：US20120210783A1
公开(公告)日：2012-08-23
申请号：US13399533
申请日：2012-02-17
申请人： Kieran A. Carroll , John Barry French , Keith Richard William Morrison
发明人： Kieran A. Carroll , John Barry French , Keith Richard William Morrison
IPC分类号： G01V7/00
CPC分类号： G01V7/06 , G01V7/00
摘要： Systems and methods for determining a bias-corrected value of at least one component of a gravity gradient tensor using a gravity gradiometer and a measurement bias of the gravity gradiometer wherein the measurement bias varies with time, by taking at least three measurements with the gravity gradiometer positioned in at least two orientations. Any gravity gradiometer can be used, including a Cross-Component Gravity Gradiometer (CCGG), an Orthogonal Quadrupole Responder (OQR), an In-Line Responder (ILR), a Diagonal-Component Gravity Gradiometer, or a Multi-Component Gravity Gradiometer (MCGG).
摘要翻译：用于使用重力梯度计和重力梯度计的测量偏差确定重力梯度张量的至少一个分量的偏差校正值的系统和方法，其中测量偏差随时间变化，通过使用重力梯度计进行至少三次测量定位在至少两个方向。可以使用任何重力梯度计，包括交叉分量重力格子辐射计（CCGG），正交四极杆响应器（OQR），在线响应器（ILR），对角线分量重力格子辐射计或多分量重力格子辐射计（ MCGG）。

3. 发明授权

US07360419B2 Gravity gradiometer 有权
标题翻译：重力梯度计
公开(公告)号：US07360419B2
公开(公告)日：2008-04-22
申请号：US11494545
申请日：2006-07-28
申请人： John Barry French , Kieran A. Carroll , Steven J. Thorpe
发明人： John Barry French , Kieran A. Carroll , Steven J. Thorpe
IPC分类号： G01V7/00 , G01M1/12
CPC分类号： G01V7/10
摘要： A gravity gradiometer having quadrupole responders in which a mass quadrupole is supported by a torsional spring forming a flexure allowing rotation of the mass quadrupole about its center of mass. The flexure can be a pair of spaced apart posts. The flexure can be made from glassy metal having at room temperature a high elastic limit, high stiffness, high strength and low internal damping. The flexure can alternatively be a web made of glassy metal.
摘要翻译：具有四极响应器的重力梯度计，其中质量四极杆由形成弯曲的扭转弹簧支撑，允许质量四极杆围绕其质心旋转。挠曲件可以是一对间隔开的柱。弯曲可以由具有高弹性极限，高刚度，高强度和低内部阻尼的室温玻璃状金属制成。挠性件也可以是由玻璃状金属制成的网。

4. 发明授权

US09038457B2 Quadrupole responder for OQR-type gravity gradiometer 有权
标题翻译： OQR型重力梯度仪的四极杆响应器
公开(公告)号：US09038457B2
公开(公告)日：2015-05-26
申请号：US13469152
申请日：2012-05-11
申请人： John Barry French , Kieran A. Carroll
发明人： John Barry French , Kieran A. Carroll
IPC分类号： G01V7/00 , G01V7/10 , G01V7/16
CPC分类号： G01V7/10 , G01V7/16
摘要： A quadrupole responder for an OQR-type gravity gradiometer comprises a housing, and a mass quadrupole positioned within the housing. The mass quadrupole has a pair of sides, and also has a center of mass between the sides. At least a pair of torsion spring flexures are provided by pins connecting said side of said mass quadrupole to the housing. The torsion spring flexures provide an axis of rotation which passes through the center of mass of the mass quadrupole and through both spring flexures. The pins are integral with the mass quadrupole.
摘要翻译：用于OQR型重力梯度计的四极响应器包括壳体和定位在壳体内的质量四极杆。质量四极杆具有一对侧面，并且在侧面之间也具有质心。至少一对扭转弹簧挠曲通过将所述质量四极杆的所述侧连接到壳体的销来提供。扭转弹簧挠曲件提供通过质量四极杆的质心的两个弹簧弯曲的旋转轴线。引脚与质量四极杆是一体的。

5. 发明授权

US08201448B2 Gravity gradiometer with torsion flexure pivots 有权
标题翻译：重力梯度计具有扭转挠曲枢轴
公开(公告)号：US08201448B2
公开(公告)日：2012-06-19
申请号：US12604775
申请日：2009-10-23
申请人： John Barry French , Kieran A. Carroll
发明人： John Barry French , Kieran A. Carroll
IPC分类号： G01V7/00
CPC分类号： G01V7/10 , G01V7/16
摘要： A quadrupole responder for an OQR-type gravity gradiometer comprises a housing, and a mass quadrupole positioned within the housing. The mass quadrupole has a pair of sides, and also has a center of mass between the sides. At least a pair of torsion spring flexures are provided by pins connecting said side of said mass quadrupole to the housing. The torsion spring flexures provide an axis of rotation which passes through the center of mass of the mass quadrupole and through both spring flexures. The pins are integral with the mass quadrupole.
摘要翻译：用于OQR型重力梯度计的四极响应器包括壳体和定位在壳体内的质量四极杆。质量四极杆具有一对侧面，并且在侧面之间也具有质心。至少一对扭转弹簧挠曲通过将所述质量四极杆的所述侧连接到壳体的销来提供。扭转弹簧挠曲件提供通过质量四极杆的质心的两个弹簧弯曲的旋转轴线。引脚与质量四极杆是一体的。

6. 发明授权

US06837106B2 Gravity gradiometry 有权
标题翻译：重力梯度
公开(公告)号：US06837106B2
公开(公告)日：2005-01-04
申请号：US09995336
申请日：2001-11-27
申请人： Bernard Etkin , John Barry French , Bjarni V. Tryggvason , Frank J. van Kann
发明人： Bernard Etkin , John Barry French , Bjarni V. Tryggvason , Frank J. van Kann
IPC分类号： G01V1/00 , G01V7/16 , G01N7/16
CPC分类号： G01N7/16 , G01V7/16
摘要： A gravity gradiometer is combined with a two-stage actively controlled isolation system. The gravity gradiometer and two stage isolation system may then be mounted within (or on) a mobile vehicle such as, for example, an aircraft. It has been recognized by the inventors herein that the accelerations imparted to an aircraft during normal operations can be separated through system design into two relatively distinct regimes within the frequency domain. The invention provides a first isolation mount, which forms part of the isolation system, to isolate accelerations (and resulting translations) falling within a first of the two frequency regimes. The second isolation mount, which is mounted to the first isolation mount, isolates accelerations falling within the second of the two frequency regimes. A gravity gradiometer can then be mounted to the second isolation mount. As a result of housing the gravity gradiometer within the nested isolation system (a combination of the first and second isolation mounts), the gravity gradiometer is substantially isolated from the accelerations experienced by the mobile vehicle. Consequently, gravity gradients measured by the gravity gradiometer are relatively noise free and provide heretofore-unobtainable accuracy.

7. 发明授权

US08279001B2 Push-pull linear hybrid class H amplifier 有权
标题翻译：推挽线性混合级H放大器
公开(公告)号：US08279001B2
公开(公告)日：2012-10-02
申请号：US13173307
申请日：2011-06-30
申请人： John Barry French , Andrew John Mason
发明人： John Barry French , Andrew John Mason
IPC分类号： H03G3/20
CPC分类号： H03F3/3076 , H03F1/0227 , H03F3/187 , H03F3/68 , H03F2200/03 , H03F2200/102 , H03F2200/33 , H03F2200/411 , H03F2200/441 , H03F2200/504 , H03F2200/78
摘要： Several push-pull linear hybrid class H amplifiers are disclosed. A split power rail provides a positive supply rail and a negative supply rail in response to a power supply control voltage. A push-pull amplifier stage is powered by the positive and negative supply rails. The amplifier stage receives an input signal and provides a corresponding amplified output signal. A power supply control circuit provides the power supply control voltage in response to the smaller of the positive and negative supply rails, and the input signal.
摘要翻译：公开了几个推挽线性混合级H放大器。分流电源轨提供正电源轨和负电源轨以响应电源控制电压。推挽放大器级由正负电源电源供电。放大器级接收输入信号并提供相应的放大输出信号。电源控制电路响应于正负电源轨和输入信号中的较小者提供电源控制电压。

8. 发明申请

US20110316630A1 PUSH-PULL LINEAR HYBRID CLASS H AMFLIER 有权
标题翻译：推拉式线性混合动力车
公开(公告)号：US20110316630A1
公开(公告)日：2011-12-29
申请号：US13173307
申请日：2011-06-30
申请人： John Barry French , Andrew John Mason
发明人： John Barry French , Andrew John Mason
IPC分类号： H03F3/26 , H03F3/45 , H03F3/04
CPC分类号： H03F3/3076 , H03F1/0227 , H03F3/187 , H03F3/68 , H03F2200/03 , H03F2200/102 , H03F2200/33 , H03F2200/411 , H03F2200/441 , H03F2200/504 , H03F2200/78
摘要： Several push-pull linear hybrid class H amplifiers are disclosed. A split power rail provides a positive supply rail and a negative supply rail in response to a power supply control voltage. A push-pull amplifier stage is powered by the positive and negative supply rails. The amplifier stage receives an input signal and provides a corresponding amplified output signal. A power supply control circuit provides the power supply control voltage in response to the smaller of the positive and negative supply rails, and the input signal.
摘要翻译：公开了几个推挽线性混合级H放大器。分流电源轨提供正电源轨和负电源轨以响应电源控制电压。推挽放大器级由正负电源电源供电。放大器级接收输入信号并提供相应的放大输出信号。电源控制电路响应于正负电源轨和输入信号中的较小者提供电源控制电压。

9. 发明授权

US06825726B2 Power amplifier with multiple power supplies 有权
公开(公告)号：US06825726B2
公开(公告)日：2004-11-30
申请号：US09902708
申请日：2001-07-12
申请人： John Barry French , Charles Robert May
发明人： John Barry French , Charles Robert May
IPC分类号： H03F304
CPC分类号： H03F1/025 , H03F1/0227 , H03F1/0238 , H03F1/0255
摘要： A power amplifier for receiving an input signal and providing a corresponding amplified output signal. One embodiment of the power amplifier includes a positive half circuit for supplying power to an amplifier during positive half waves of the output signal and a negative half circuit for supplying power to the amplifier during negative half waves of the output signal. Each half circuit has a main power supply, which is typically a switching regulator, and which supplies a first power signal to the amplifier. The slew rate of this first power signal is intentionally limited to control EMI emissions. Each half circuit also has a transient power supply which may be selectively engaged to provide a second power signal to the amplifier when the first power signal is insufficient to power the amplifier. Each half circuit may also include a low voltage power supply which provides a third power signal to the amplifier, allowing the main power supply to be disabled when a low power level is required, further reducing EMI emissions. Each half circuit has a control circuit which regulates the power output from the main and transient power supplies. The control circuit may provide a pulse width modulated control signal or a pulse density modulated control signal to control the switching regulator. If a pulse density control signal is provided, the switching regulator may be a resonant switching regulator. The power amplifier may be modified for use with a bridge amplifier, with multiple channels and may incorporate an overload detection circuit. In another embodiment of power amplifier the transient power supply is replaced with a transient control circuit that, when the first power supply is insufficient to power the amplifier, temporarily forces the first power supply to a 100% duty cycle, and then for a longer period, increases the duty cycle from its normal level to allow the first power supply to adequately power the amplifier more quickly.

10. 发明授权

US4121099A Method and apparatus for focussing and declustering trace ions 失效
标题翻译：用于聚焦和分解微量离子的方法和装置
公开(公告)号：US4121099A
公开(公告)日：1978-10-17
申请号：US790216
申请日：1977-04-25
申请人： John Barry French , Neil M. Reid , Janette A. Buckley
发明人： John Barry French , Neil M. Reid , Janette A. Buckley
IPC分类号： G01N27/64 , G01N27/68 , G01N33/00 , H01J49/04 , B01D59/44
CPC分类号： H01J49/067 , G01N27/64 , G01N27/68 , H01J49/0422
摘要： A method and apparatus for focussing and declustering trace ions travelling from a gas through an orifice into a vacuum chamber and to a mass analyzer in the vacuum chamber. Advantage is taken of the free jet expansion of the gas into the vacuum chamber by applying an electric focussing field in a specific region of the free jet. The region is selected sufficiently close to the orifice that the gas density limits the kinetic energy spread which the ions can acquire under the applied field, typically to 2 ev or less, while the early focussing increases the available ion signal. Declustering can be collision induced in the region by providing a field in the region sufficient to impart an internal energy of between 0.1 and 1.5 ev to ions in the region. The kinetic energy which the ions can acquire under the applied field is still limited by the density of the gas in the free jet, so that the kinetic energy spread which the ions can acquire is still limited. Preferably the focussing and declustering fields are produced by a single conical tapered lens element located at distance X.sub.l from the orifice, where ##EQU1## and D is the orifice diameter, for atmospheric pressure and room temperature source conditions. The electric field between the lens element and the mass spectrometer is then controlled to limit the energy spread imparted to the ions in their travel from the lens elements to the mass spectrometer.
摘要翻译：一种用于将从气体通过孔传播到真空室中的痕量离子聚焦和去聚簇的方法和装置，以及真空室中的质量分析器。通过在自由射流的特定区域中施加电聚焦场，将气体自由射流膨胀到真空室中的优点。该区域被选择为足够靠近孔口，气体密度限制了在施加场下离子可以获得的动能扩散，通常为2ev或更小，同时早期聚焦增加了可用的离子信号。在该区域中，通过在该区域内提供足以赋予0.1至1.5ev内部能量的离子的区域中的场，可以使该区域中的碰撞引发碰撞。在施加场下离子可以获得的动能仍然受到自由射流中气体密度的限制，使离子可以获得的动能扩散仍然受到限制。优选地，聚焦和去聚簇场由位于孔口距离X1处的单个锥形锥形透镜元件产生，其中和D是孔直径，用于大气压力和室温源条件。然后控制透镜元件和质谱仪之间的电场，以限制在从透镜元件到质谱仪的行进中赋予离子的能量扩展。

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