GRAVITY TRANSDUCER SYSTEM AND METHOD INCLUDING JUNCTIONS WITH A FIRST METAL AND A SECOND METAL

    公开(公告)号:US20180031726A1

    公开(公告)日:2018-02-01

    申请号:US15727157

    申请日:2017-10-06

    IPC分类号: G01V7/00 G01V7/16 G01V7/06

    CPC分类号: G01V7/005 G01V7/06 G01V7/16

    摘要: An airborne gravity-based transducer is disclosed as two embodiments with similar physical structures but different operating principles. The first design includes a particle acting as an active interface characterized by internal vibrations relating to its de Broglie wave, a resonant cavity for trapping the particle, and a phonon-wave source wherein the de Broglie and phonon waves interact over a junction area. In the second design, mechanical displacements between the transducer elements can be monitored through electromechanical transduction. Both designs include a power source and a biasing circuit for producing an electrical current across the junction, and a sensing system for measuring voltage. Both designs are capable of cancelling slowly-varying gravitational acceleration due to dynamic interaction in motion with the gravitational field and responding to small-scale gravity anomalies. Furthermore, a number of cascade design configurations based on the basic design are also disclosed in order to enhance the transducer performance. The transducer can be utilized in hydrocarbon exploration to provide information on areas conducive to fluid entrapment in the sedimentary column.

    APPARATUS FOR MEASURING GRAVITATIONAL FORCE AND METHODS OF USING THE SAME
    3.
    发明申请
    APPARATUS FOR MEASURING GRAVITATIONAL FORCE AND METHODS OF USING THE SAME 审中-公开
    用于测量变形力的装置及其使用方法

    公开(公告)号:US20130042680A1

    公开(公告)日:2013-02-21

    申请号:US13587689

    申请日:2012-08-16

    IPC分类号: G01V7/02

    CPC分类号: G01V7/005

    摘要: An apparatus for measuring gravitational force is provided having at least one optomechanical oscillator, the at least one optomechanical oscillator having an initial resonance, and a second resonance when displaced by gravitational force; and at least one photonic crystal having at least one cavity coupling optical and mechanical degrees of freedom of the oscillator.

    摘要翻译: 提供一种用于测量重力的装置,具有至少一个光学机械振荡器,所述至少一个光学机械振荡器具有初始共振,以及当通过重力移位时的第二共振; 以及至少一个具有耦合所述振荡器的光学和机械自由度的至少一个空腔的光子晶体。

    Gravity Gradiometer
    4.
    发明申请

    公开(公告)号:US20100071462A1

    公开(公告)日:2010-03-25

    申请号:US12560618

    申请日:2009-09-16

    IPC分类号: G01V7/00

    CPC分类号: G01V7/005

    摘要: 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.

    Gravity Gradiometer
    5.
    发明申请
    Gravity Gradiometer 有权
    重力Gradiometer

    公开(公告)号:US20090293611A1

    公开(公告)日:2009-12-03

    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。

    Apparatus for the measurement of gravitational fields
    6.
    发明授权
    Apparatus for the measurement of gravitational fields 失效
    重力场测量装置

    公开(公告)号:US5962781A

    公开(公告)日:1999-10-05

    申请号:US809914

    申请日:1997-06-13

    IPC分类号: G01V7/02 G01V7/00

    CPC分类号: G01V7/005

    摘要: Apparatus for measuring gravitational fields comprising a superconducting string (1) fixed at both ends and forming part of a closed superconducting loop inductively coupled to two driving solenoids (L.sub.d1, L.sub.d2). Displacement of the string in response to a gravitational field is sensed by two magnetic flux transformers each comprising a signal coil and two pick-up coils ((L.sub.p1, L.sub.p2). Pairs of pick-up coils lie in two perpendicular planes providing two independent channels of measurements. The two arms of each flux transformer are balanced to convert only the amplitudes of the string's antisymmetric natural modes into an output voltage. The output voltage of each channel is used to produce a feed-back current distribution (L.sub.y1, L.sub.y2) proximate and parallel to the string. By adjusting the feed-back current, the effective relaxation time and resonant frequency of the first antisymmetric mode of the string can be adjusted, while leaving the symmetric modes unchanged, thus increasing the apparatus' sensitivity to gravity gradients.

    摘要翻译: PCT No.PCT / GB95 / 02349 Sec。 371日期:1997年6月13日 102(e)日期1997年6月13日PCT提交1995年10月4日PCT公布。 公开号WO96 / 10759 日期1996年4月11日用于测量重力场的装置包括固定在两端的超导线(1),并形成感应耦合到两个驱动螺线管(Ld1,Ld2)的闭合超导回路的一部分。 响应于重力场的弦的位移由两个磁通变压器感测到,每个磁通量变换器包括信号线圈和两个拾取线圈((Lp1,Lp2)),两对拾取线圈位于提供两个独立通道的两个垂直平面中 每个通量变换器的两个臂平衡,仅将弦的反对称自然模式的幅度转换为输出电压,每个通道的输出电压用于产生接近的反馈电流分布(Ly1,Ly2) 通过调整反馈电流,可以调节串的第一反对称模式的有效弛豫时间和谐振频率,同时保持对称模式不变,从而增加设备对重力梯度的敏感性。

    Mechanical linear guide
    7.
    发明授权
    Mechanical linear guide 失效
    机械直线导轨

    公开(公告)号:US5663486A

    公开(公告)日:1997-09-02

    申请号:US454358

    申请日:1995-08-07

    摘要: A mechanical linear guide for making a body move in an axial direction, comprising a system which is preferably made up of reinforced leaf springs and/or hole-type hinges, and which is rotationally symmetrical about an axial direction and mirror-symmetrical about a plane perpendicular to the axial direction. The system is connected to a fixed base at six points (A, D, I, L, M, P), and a body (18) is suspended between two points (F, G) in such a way that it can carry out only movement in the axial direction, and not in the lateral direction.

    摘要翻译: PCT No.PCT / NL93 / 00265 Sec。 371日期:1995年8月7日 102(e)日期1995年8月7日PCT提交1993年12月14日PCT公布。 第WO94 / 13976号公报 日期1994年6月23日用于使身体沿轴向移动的机械线性引导件,包括优选由加强的板簧和/或孔型铰链构成并且围绕轴向和镜子旋转对称的系统 围绕垂直于轴向方向的平面对称。 该系统在六点(A,D,I,L,M,P)处连接到固定基座,并且主体(18)悬挂在两点(F,G)之间,使得它可以执行 只能在轴向移动,而不是横向移动。

    Amplifier with feedback particularly useful with a gravity wave detector
    8.
    发明授权
    Amplifier with feedback particularly useful with a gravity wave detector 失效
    具有反馈功能的放大器特别适用于重力波检测器

    公开(公告)号:US3554033A

    公开(公告)日:1971-01-12

    申请号:US3554033D

    申请日:1967-10-25

    发明人: WEBER JOSEPH

    CPC分类号: G01V7/005 H03F1/36

    摘要: AN AMPLIFIER PARTICULARLY FOR USE WITH A PIEZOELECTRIC TRANSDUCER BONDED TO A VIBRATING MASS. THE CRYSTAL IS CONNECTED IN THE INPUT CIRCUIT OF THE AMPLIFIER, AND THE MASS AND CRYSTAL ARE EQUIVALENTLY REPRESENTED BY A SERIES TUNED CIRCUIT, AT RESONANCE. A FEEDBACK PATH OF HIGH RESISTANCE IS PROVIDED IN THE AMPLIFIER, AND FEEDBACK IS NEGATIVE, SO THAT THE FEEDBACK RESISTANCE AND THE AMPLIFIER INPUT IMPEDANCE LARGE NEGATIVE FEEDBACK OCCURS, WHILE FOR LOW INPUT IMPEDANCE SMALL NEGATIVE FEEDBACK OCCURS, DUE TO THE ACTION OF THE DIVIDER. THE EFFECTIVE Q OF THE SERIES TUNED CIRCUIT IS THUS INCREASED. THE OUTPUT CIRCUIT OF THE AMPLIFIER MAY BE, IF DESIRED, A LOW Q TANK CIRCUIT. IF R2 IS THE FEEDBACK RESISTANCE AND R THE EFFECTIVE RESISTANCE OF THE SERIES TUNED CIRCUIT GAIN CAN BE

    R2 R

    AT RESONANCE.

    OPTOMECHANICAL DEVICE FOR ACTUATING AND/OR DETECTING MOVEMENT OF A MECHANICAL ELEMENT, IN PARTICULAR FOR GRAVIMETRIC DETECTION
    10.
    发明申请
    OPTOMECHANICAL DEVICE FOR ACTUATING AND/OR DETECTING MOVEMENT OF A MECHANICAL ELEMENT, IN PARTICULAR FOR GRAVIMETRIC DETECTION 审中-公开
    用于执行和/或检测机械元件的运动的特殊装置,特别是用于检测的机械装置

    公开(公告)号:US20150107357A1

    公开(公告)日:2015-04-23

    申请号:US14519390

    申请日:2014-10-21

    IPC分类号: G01V7/00 G01V7/02

    摘要: Optomechanical device for actuating and/or detecting movement of a mechanical element, in particular for gravimetric detection. It includes a support with a mechanical element anchored to the support which is designed to move relative to the element, and a device for actuating and/or detecting movement or of variations in frequency of movement of the element. A portion of the device is arranged beneath at least part of the element, between the element and the support. The device includes a fixed optical device with at least one optical waveguide arranged beneath all or part of the element at a determined distance from the element, and which is designed to propagate at least one optical wave having a given wavelength designed to interact with the element. The optical waveguide is at a determined distance from the mechanical element so that the evanescent field of the optical waveguide interacts with the mechanical element.

    摘要翻译: 用于致动和/或检测机械元件的运动的机械装置,特别是用于重力检测。 它包括支撑件,其具有锚固到支撑件的机构元件,该机构元件被设计成相对于元件移动;以及用于致动和/或检测元件的运动或移动频率变化的装置。 装置的一部分布置在元件的至少一部分之下,元件和支撑件之间。 该装置包括具有至少一个光波导的固定光学装置,该至少一个光波导布置在与元件相距一定距离处的元件的全部或部分下方,并被设计成传播至少一个具有给定波长的光波,该光波被设计为与元件相互作用 。 光波导与机械元件处于确定的距离,使得光波导的消逝场与机械元件相互作用。