SYNTHETIC VIBRATION ISOLATION SYSTEM FOR FREEFALL GRAVIMETER
    1.
    发明申请
    SYNTHETIC VIBRATION ISOLATION SYSTEM FOR FREEFALL GRAVIMETER 审中-公开
    用于自由式砂浆的合成振动隔离系统

    公开(公告)号:WO2011022702A1

    公开(公告)日:2011-02-24

    申请号:PCT/US2010/046236

    申请日:2010-08-20

    IPC分类号: G01V7/00

    CPC分类号: G01V7/14

    摘要: A gravimeter is disclosed that comprises a base, a reference device coupled to the base and configured to move along a first axis, a falling device configured to free fall from a first position to a second position on a second axis that is parallel to the first axis, a measurement module coupled to the reference device and configured to provide a first signal of the displacement of the reference device relative to the base and provide a second signal of the displacement of the falling device relative to the reference device. A processing unit accepts the first and second signals and computes a displacement of the falling device in inertial space by processing the first and second signals and subtracting the processed first signal from the processed second signal.

    摘要翻译: 公开了一种重力计,其包括基座,连接到基座并被配置为沿着第一轴线移动的参考装置,构造成在平行于第一轴线的第二轴线上从第一位置到第二位置自由下落的下降装置 轴,测量模块,其耦合到所述参考装置并且被配置为提供所述参考装置相对于所述基座的位移的第一信号,并且提供所述下落装置相对于所述参考装置的位移的第二信号。 处理单元接受第一和第二信号,并且通过处理第一和第二信号并从经处理的第二信号中减去经处理的第一信号来计算下降装置在惯性空间中的位移。

    GRAVITY METER
    2.
    发明申请
    GRAVITY METER 审中-公开
    重量表

    公开(公告)号:WO1997041459A1

    公开(公告)日:1997-11-06

    申请号:PCT/AU1997000249

    申请日:1997-04-23

    IPC分类号: G01V07/16

    CPC分类号: G01V7/14 G01V7/16

    摘要: A gravity gradiometer (1) comprising first (2) and second proof masses (4) and means (13) for providing simultaneous free flight of the proof masses under the influence of the gravitational force in which the gradient is to be measured and capacitance means (6, 7) for monitoring the movement of the centres of mass (3, 5) with respect to each other during free flight by monitoring capacitance between portions of the two proof masses.

    摘要翻译: 一种重力梯度计(1),包括第一(2)和第二检验质量块(4)和装置(13),用于在受到测量梯度的重力的影响下提供证明块的同时自由飞行,并且电容装置 (6,7),用于通过监测两个证明质量块的部分之间的电容来监测自由飞行期间彼此相对于质心(3,5)的运动。

    TEST MASS AND METHOD FOR INTERFEROMETRIC GRAVITY CHARACTERISTIC MEASUREMENT
    3.
    发明申请
    TEST MASS AND METHOD FOR INTERFEROMETRIC GRAVITY CHARACTERISTIC MEASUREMENT 审中-公开
    用于干涉重力特性测量的测试质量和方法

    公开(公告)号:WO2014018326A1

    公开(公告)日:2014-01-30

    申请号:PCT/US2013/050819

    申请日:2013-07-17

    IPC分类号: G01V7/14

    CPC分类号: G01V7/14

    摘要: A test mass used for light beam interferometric gravity characteristic measurement has a center of mass located equidistant and colinear with optical center points of two oppositely reflecting retroreflectors. Rotation of the test mass about its center of mass during freefall changes the path length of the oppositely reflected light beams by equal amounts, thereby achieving common mode cancellation of the effects of test mass rotation when the two reflected light beams are interferometrically combined.

    摘要翻译: 用于光束干涉重力特性测量的测试质量具有等距离的质心,并与两个相反反射的后向反射器的光学中心点共线。 在自由落体期间测试质量块围绕其质心的旋转将相反反射的光束的路径长度相等地改变,从而实现当两个反射光束被干涉组合时测试质量旋转的影响的共模消除。

    INTERFEROMETRIC GRADIOMETER APPARATUS AND METHOD
    4.
    发明申请
    INTERFEROMETRIC GRADIOMETER APPARATUS AND METHOD 审中-公开
    干涉仪等离子体仪器和方法

    公开(公告)号:WO2014018324A1

    公开(公告)日:2014-01-30

    申请号:PCT/US2013/050800

    申请日:2013-07-17

    IPC分类号: G01V7/14 G01V7/16

    摘要: A gravity gradient is measured interferometrically from two light beams which each reflect from both of two freefalling test masses. The light beams project in beam arms which remain equal in length as the two test masses freefall except for different effects of gravity on each test mass and any initial relative velocity difference imparted to the test masses. The optical path length of the beam arms also change equally and oppositely during freefall, to amplify the interferometric effect by four times. A high level of common mode rejection eliminates many spurious influences.

    摘要翻译: 从两个自由下落的测试质量两个反射的两个光束干涉测量重力梯度。 光束投射在梁臂中,两个试验块自由下落,长度保持相等,除了重力对每个试验质量的不同影响以及施加到试验块的任何初始相对速度差。 光束臂的光程长度在自由落体时也会相等和相反地变化,以将干涉效应放大四倍。 高级别的共模抑制消除了许多杂散影响。

    SLIDING WEIGHT BOREHOLE GRAVIMETER
    5.
    发明申请
    SLIDING WEIGHT BOREHOLE GRAVIMETER 审中-公开
    滑动重量钻孔砂浆机

    公开(公告)号:WO2008021643A3

    公开(公告)日:2008-10-09

    申请号:PCT/US2007073367

    申请日:2007-07-12

    IPC分类号: G01B9/02 G01V7/04

    CPC分类号: G01V7/14

    摘要: A borehole tool including an interferometer, a light source, a chamber containing a sliding weight having a first optical prism, a second optical prism located within the chamber, a tilt measuring device, and a timing device operatively associated with the interferometer. The light source, the interferometer, and the first and second optical prisms are configured to cause light emitted by the light source to form a first beam and a second beam that interfere with each other. The interferometer measures distances traveled by the sliding weight in the upward and downward direction by counting the fringes caused by the interference between the first beam and the second beam. The tilt measuring device measures the angle of the chamber relative to vertical. The influence of friction on the sliding weight's motion is eliminated by comparing the distances traveled by it in its upward and downward path over an equal time interval.

    摘要翻译: 一种钻孔工具,包括干涉仪,光源,包含具有第一光学棱镜的滑动重物的腔室,位于腔室内的第二光学棱镜,倾斜测量装置和与干涉仪可操作地相关联的定时装置。 光源,干涉仪以及第一和第二光学棱镜被配置成使由光源发射的光形成彼此干涉的第一光束和第二光束。 干涉仪通过计数由第一光束和第二光束之间的干涉引起的条纹来测量滑动重量在向上和向下方向上行进的距离。 倾斜测量装置测量腔室相对于垂直方向的角度。 通过比较在相同的时间间隔内它在其向上和向下路径中行进的距离来消除摩擦对滑动重量运动的影响。

    COLD ATOM GRAVITY GRADIOMETER
    6.
    发明申请
    COLD ATOM GRAVITY GRADIOMETER 审中-公开
    冷OM ITY ITY。。。。。。

    公开(公告)号:WO2014106811A3

    公开(公告)日:2015-02-26

    申请号:PCT/IB2014000340

    申请日:2014-01-06

    申请人: MUQUANS

    IPC分类号: G01V7/14 G01V7/04

    CPC分类号: G01V7/04 G01V7/14

    摘要: A cold atom gravity gradiometer system includes a laser source that generates a laser beam that propagates along a propagation direction. The system further includes a reflector that reflects a portion of the laser beam and transmits another portion of the laser beam (the transmitted portion). A second reflector spatially separated from the first reflector along the propagation direction reflects the transmitted portion of the laser beam.

    摘要翻译: 冷原子重力梯度计系统包括产生沿着传播方向传播的激光束的激光源。 该系统还包括反射激光束的一部分并透射激光束的另一部分(透射部分)的反射器。 沿着传播方向与第一反射器空间分离的第二反射器反射激光束的透射部分。

    COLD ATOM GRAVITY GRADIOMETER
    7.
    发明申请
    COLD ATOM GRAVITY GRADIOMETER 审中-公开
    冷OM ITY ITY。。。。。。

    公开(公告)号:WO2014106811A2

    公开(公告)日:2014-07-10

    申请号:PCT/IB2014/000340

    申请日:2014-01-06

    申请人: MUQUANS

    IPC分类号: G01V7/04

    CPC分类号: G01V7/04 G01V7/14

    摘要: A cold atom gravity gradiometer system includes a laser source that generates a laser beam that propagates along a propagation direction. The system further includes a reflector that reflects a portion of the laser beam and transmits another portion of the laser beam (the transmitted portion). A second reflector spatially separated from the first reflector along the propagation direction reflects the transmitted portion of the laser beam.

    摘要翻译: 冷原子重力梯度计系统包括产生沿着传播方向传播的激光束的激光源。 该系统还包括反射激光束的一部分并透射激光束的另一部分(透射部分)的反射器。 沿着传播方向与第一反射器空间分离的第二反射器反射激光束的透射部分。

    СПОСОБ И УСТРОЙСТВО ИЗМЕРЕНИЯ УСКОРЕНИЯ СВОБОДНОГО ПАДЕНИЯ
    8.
    发明申请

    公开(公告)号:WO2013077771A1

    公开(公告)日:2013-05-30

    申请号:PCT/RU2012/000948

    申请日:2012-11-16

    IPC分类号: G01V7/00

    CPC分类号: G01V7/14

    摘要: Группа изобретений относится к области физики, в частности, к гравиметрии и может быть использовано при проведении геофизических исследований, результаты которых востребованы в таких областях техники как астрономия, геодезия и геология. Задачей, на решение которой направлена группа изобретений, является разработка способа измерения и устройства, повышающих информативность гравиметрических измерений. Поставленная задача решается за счет того, что в способе измерения ускорения свободного падения (g z ) посредством измерения деформации первичного механического преобразователя гравиметрического датчика, пропорциональной силе тяжести пробной массы (mg z ), значение ускорения gz дополняют мерой сравнения - известным значением центростремительного ускорения (а ц ), с таким расчетом, чтобы они воздействовали на пробную массу датчика совместно в виде результирующего вектора (g z +а ц ). Способ может быть реализован посредством устройства измерения ускорения свободного падения g z , оснащенного гравиметрическим датчиком, содержащим пробную массу m, первичным преобразователем, регистратором его деформации, усилителем, цифровым преобразователем, компьютером и работающим в автоматическом режиме, я при этом гравиметрический датчик, содержащий электромеханический преобразователь, расположен на диске с осью. Кроме того, устройство может быть оснащено приводом принудительного вращения, который обеспечивает вращение диска в прямом и обратном направлениях с заданной угловой скоростью вращения, а диск может быть размещен в координатном устройстве, обеспечивающем возможность выполнять измерения в выбранном пространственном положении плоскости вращения.

    摘要翻译: 这组发明涉及到物理学领域,特别是重力测量,可以用于地球物理勘测的演示,其结果对天文学,大地测量学和地质学等技术领域都是重要的。 该发明组所解决的问题是开发了增加重量测量信息的测量方法和装置。 这个问题的解决之处在于,在通过测量与测试质量(mgz)的重力成比例的重量测量传感器中的主要机械换能器的变形来测量自由落体加速度(gz)的方法中, 加速度(gz)补充了比较措施,即向心加速度(ац)的已知值,使得两者以合成矢量(gz +ац)的形式联合在传感器的测试质量上。 该方法可以使用用于测量自由落体加速度的装置来实现,该装置配备有包含测试质量m的重量传感器,主换能器,用于记录其变形的装置,放大器,数字换能器和 自动计算机,其中包含机电换能器的重量测量传感器设置在具有轴的盘上。 此外,该装置可配备旋转致动器,该旋转致动器使盘能够以设定的角速度向前和向后旋转,并且该盘可以设置在坐标装置中,这使得可以以所选择的方向执行测量 旋转平面

    GRAVITY GRADIOMETER
    9.
    发明申请
    GRAVITY GRADIOMETER 审中-公开

    公开(公告)号:WO2019116047A1

    公开(公告)日:2019-06-20

    申请号:PCT/GB2018/053630

    申请日:2018-12-14

    IPC分类号: G01V7/04 G01V7/14

    CPC分类号: G01V7/04 G01V7/14

    摘要: The disclosure relates to a gravity gradiometer comprising a pair of magneto-optical traps for measuring a gravity gradient. Example embodiments include a cold atom gravity gradiometer system (100) comprising: first and second magneto-optical traps (101, 102), each having a plurality of mirrored surfaces (103, 104) arranged to reflect an incident laser beam (105, 106) to trap respective first and second cold atom clouds (107, 108) separated from each other by a separation distance; an optical subsystem arranged to transmit a first laser beam (105) in a first direction along a first longitudinal axis towards the first magneto-optical trap (101) and a second laser beam (106) in an opposite second direction along a second longitudinal axis towards the second magneto-optical trap (102), the second longitudinal axis being parallel to the first longitudinal axis.