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公开(公告)号：US07388806B2
公开(公告)日：2008-06-17
申请号：US11337967
申请日：2006-01-23
申请人： Mark Jonathan Brice Hayman , Bruce Leigh Townsend , Nicholas Jason Ackerley , Robin Brice Hayman
发明人： Mark Jonathan Brice Hayman , Bruce Leigh Townsend , Nicholas Jason Ackerley , Robin Brice Hayman
CPC分类号： G01V1/16
摘要： A mass positioning apparatus for use with seismic sensors is described. The seismic sensor includes axis mechanics including a pivotable boom with a defined null point. The mass positioning apparatus comprising: adjustment means for positioning the boom at the null point; actuator means for moving the adjustment means; and means for determining a position of the adjustment means relative to an operational range of travel.
摘要翻译： 描述了一种用于地震传感器的质量定位装置。 地震传感器包括轴力学，包括具有定义的零点的可枢转的悬臂。 所述质量定位装置包括：用于将吊杆定位在零点处的调节装置; 用于移动调节装置的致动器装置; 以及用于确定调节装置相对于行驶范围的位置的装置。
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公开(公告)号：US20080134786A1
公开(公告)日：2008-06-12
申请号：US11945137
申请日：2007-11-26
IPC分类号： G01P15/02
CPC分类号： G01V1/181
摘要： A seismic sensor includes a frame, a pendulum pivotably mounted to the frame, a mechanism for sensing angular position of the pendulum, and a monolithic flat spring oriented between the frame and the pendulum for balancing the pendulum at an equilibrium position. The monolithic flat spring includes: (i) an operating region for providing a restoring force to the pendulum proportional to an angular displacement of the pendulum; and (ii) a suspension region for transmitting a force to a portion of the operating region and applying a negligible bending moment to the portion of the operating region.
摘要翻译： 地震传感器包括框架，可枢转地安装到框架的摆件，用于感测摆的角位置的机构，以及定向在框架和摆之间的单片式弹簧，用于在平衡位置平衡摆锤。 整体式平板弹簧包括：（i）用于向摆锤提供与摆锤的角位移成比例的恢复力的操作区域; 和（ii）用于将力传递到所述操作区域的一部分并且向所述操作区域的所述部分施加可忽略的弯曲力矩的悬挂区域。
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公开(公告)号：US07385873B2
公开(公告)日：2008-06-10
申请号：US11337804
申请日：2006-01-23
CPC分类号： G01V1/181
摘要： A mass position adjustment apparatus for use in a seismic sensor having axis mechanics including a pivotable boom with a defined null point is described. The apparatus comprising: (a) adjustment means for positioning the boom at the null point; (b) actuator means for moving the adjustment assembly; and (c) interface means having hard mineral members for interfacing the actuator means with the adjustment means for reducing occurrences of micro-mechanical movement when the mass position adjustment apparatus is not being operated.
摘要翻译： 描述了一种在具有轴向力学的地震传感器中使用的质量位置调节装置，其包括具有确定的零点的可枢转的悬臂。 该装置包括：（a）用于将吊杆定位在零点处的调节装置; （b）用于移动调节组件的致动器装置; 和（c）具有硬质矿物构件的接合装置，用于使致动器装置与调节装置相接合，用于当质量位置调节装置未被操作时减少微机械运动的发生。
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公开(公告)号：US07870789B2
公开(公告)日：2011-01-18
申请号：US11945137
申请日：2007-11-26
IPC分类号： G01P15/00
CPC分类号： G01V1/181
摘要： A seismic sensor includes a frame, a pendulum pivotably mounted to the frame, a mechanism for sensing angular position of the pendulum, and a monolithic flat spring oriented between the frame and the pendulum for balancing the pendulum at an equilibrium position. The monolithic flat spring includes: (i) an operating region for providing a restoring force to the pendulum proportional to an angular displacement of the pendulum; and (ii) a suspension region for transmitting a force to a portion of the operating region and applying a negligible bending moment to the portion of the operating region.
摘要翻译： 地震传感器包括框架，可枢转地安装到框架的摆件，用于感测摆的角位置的机构，以及定向在框架和摆之间的单片式弹簧，用于在平衡位置平衡摆锤。 整体式平板弹簧包括：（i）用于向摆锤提供与摆锤的角位移成比例的恢复力的操作区域; 和（ii）用于将力传递到所述操作区域的一部分并且向所述操作区域的所述部分施加可忽略的弯曲力矩的悬挂区域。
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公开(公告)号：US20100223998A1
公开(公告)日：2010-09-09
申请号：US12709429
申请日：2010-02-19
IPC分类号： G01P15/125
CPC分类号： G01P15/125 , G01V1/181
摘要： A broadband weak-motion inertial sensor includes a frame, a movable inertial mass, a forcing transducer for keeping the inertial mass stationary relative to the frame during operation, and a flexure for suspending the movable mass in the frame. Two or more closely spaced, substantially parallel capacitor plates, at least one attached to the frame, and one attached to the movable inertial mass, form a capacitive displacement transducer. The capacitor plates have a plurality of apertures with dimensions and arrangement chosen to simultaneously minimize damping induced thermal noise and give a high spatial efficiency. In an implementation, three capacitor plates are provided. The capacitor plates each have a same hexagonal pattern of circular holes; the holes are aligned on all included capacitor plates. Radius and spacing of the holes are dictated by a relationship that determines the minimum damping per unit capacitively effective area for a desired spatial efficiency, gap height and capacitor plate thickness. In an implementation, the capacitor plates are made of a printed circuit board material which, through etching of the thin conductive layer, can be mounted directly to a conductive frame and conductive inertial mass without the use of non-conductive spacers.
摘要翻译： 宽带弱运动惯性传感器包括框架，可动惯性质量块，用于在操作期间保持惯性质量相对于框架静止的强制换能器，以及用于将可移动块悬挂在框架中的挠曲件。 两个或更多个紧密间隔的基本上平行的电容器板，至少一个附接到框架的电容器板和连接到可动惯性块的一个电容器板形成电容式位移传感器。 电容器板具有多个孔，尺寸和布置选择为同时最小化阻尼感应的热噪声并且给出高的空间效率。 在实施中，提供三个电容器板。 电容器板各自具有相同的六边形图形的圆孔; 这些孔在所有包含的电容器板上对齐。 孔的半径和间距由一个关系确定，该关系决定了所需空间效率，间隙高度和电容器板厚度的每单位电容有效面积的最小阻尼。 在一个实施方案中，电容器板由印刷电路板材料制成，其通过蚀刻薄导电层可以直接安装到导电框架和导电惯性块，而不使用非导电间隔件。
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公开(公告)号：US08544325B2
公开(公告)日：2013-10-01
申请号：US12709429
申请日：2010-02-19
IPC分类号： G01P15/00 , G01P15/125
CPC分类号： G01P15/125 , G01V1/181
摘要： A broadband weak-motion inertial sensor includes a frame, a movable inertial mass, a forcing transducer for keeping the inertial mass stationary relative to the frame during operation, and a flexure for suspending the movable mass in the frame. Two or more closely spaced, substantially parallel capacitor plates, at least one attached to the frame, and one attached to the movable inertial mass, form a capacitive displacement transducer. The capacitor plates have a plurality of apertures with dimensions and arrangement chosen to simultaneously minimize damping induced thermal noise and give a high spatial efficiency. In an implementation, three capacitor plates are provided. The capacitor plates each have a same hexagonal pattern of circular holes; the holes are aligned on all included capacitor plates. Radius and spacing of the holes are dictated by a relationship that determines the minimum damping per unit capacitively effective area for a desired spatial efficiency, gap height and capacitor plate thickness. In an implementation, the capacitor plates are made of a printed circuit board material which, through etching of the thin conductive layer, can be mounted directly to a conductive frame and conductive inertial mass without the use of non-conductive spacers.
摘要翻译： 宽带弱运动惯性传感器包括框架，可动惯性质量块，用于在操作期间保持惯性质量相对于框架静止的强制换能器，以及用于将可移动块悬挂在框架中的挠曲件。 两个或更多个紧密间隔的基本上平行的电容器板，至少一个附接到框架的电容器板和连接到可动惯性块的一个电容器板形成电容式位移传感器。 电容器板具有多个孔，尺寸和布置选择为同时最小化阻尼感应的热噪声并且给出高的空间效率。 在实施中，提供三个电容器板。 电容器板各自具有相同的六边形图形的圆孔; 这些孔在所有包含的电容器板上对齐。 孔的半径和间距由一个关系确定，该关系决定了所需空间效率，间隙高度和电容器板厚度的每单位电容有效面积的最小阻尼。 在一个实施方案中，电容器板由印刷电路板材料制成，其通过蚀刻薄导电层可以直接安装到导电框架和导电惯性块，而不使用非导电间隔件。
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公开(公告)号：US08159904B2
公开(公告)日：2012-04-17
申请号：US12709443
申请日：2010-02-19
IPC分类号： G01V1/18
CPC分类号： G01V1/181
摘要： A broadband weak-motion seismometer includes: a frame, a mass, a suspension means for movably connecting the mass to the frame, a sensing transducer for measuring displacement of the mass with respect to the frame and for generating a sensing transducer output signal, which is a function of the measured displacement, a forcing transducer for applying a feedback force in a predetermined direction to the mass, and a control circuit. The control circuit receives the sensing transducer output signal and generates a forcing transducer input signal that includes a self-noise component. The forcing transducer input signal is processed by the forcing transducer to apply the feedback force to maintain the mass at rest with respect to the frame. The feedback force is sufficient to counterbalance a constant acceleration of the frame of at least 0.2 m/s2 in the predetermined direction of the feedback force. The self-noise component of the forcing transducer input signal, when processed by the forcing transducer, produces variable acceleration of the mass with spectral density less than −150 dB with respect to 1 m2/s3 at 0.01 Hz.
摘要翻译： 宽带弱运动地震仪包括：框架，质量块，用于将质量块可移动地连接到框架的悬挂装置，用于测量质量相对于框架的位移并用于产生感测换能器输出信号的感测传感器，其中 是测量的位移的函数，用于向质量施加沿预定方向的反馈力的强制换能器和控制电路。 控制电路接收感测传感器输出信号并产生包括自噪声分量的强制传感器输入信号。 强制传感器输入信号由强制传感器处理，以施加反馈力以使质量相对于框架保持静止。 反馈力足以在反馈力的预定方向上平衡框架的恒定加速度为至少0.2m / s2。 强制传感器输入信号的自噪声分量在强制传感器处理时，产生质量的可变加速度，频谱密度小于-150 dB，相对于0.01 Hz时的1 m2 / s3。
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公开(公告)号：US07594438B2
公开(公告)日：2009-09-29
申请号：US11945052
申请日：2007-11-26
IPC分类号： G01P15/10
CPC分类号： G01V1/181 , G01P15/08 , G01P15/125 , G01P2015/0814 , G01P2015/0828
摘要： A long-period weak-motion inertial sensor includes a frame having a frame mounting surface, a movable mass having a movable mass mounting surface, a transducer for sensing displacements of the movable mass with respect to the frame, and a monolithic flexure element for suspending the movable mass in the frame. The monolithic flexure element includes: a stiff frame integral clamp attachable to the frame mounting surface of the frame, a stiff movable mass integral clamp attachable to the movable mass mounting surface of the movable mass, and a stiffest flexible region for operatively connecting the frame integral clamp to the movable mass integral clamp. The frame and movable mass mounting surfaces do not overlap the stiffest flexible region, thereby minimizing the generation of creep and hysteresis noise. The variation in stiffness of the monolithic flexure element is controlled by varying thickness along the length of the flexure element.
摘要翻译： 长周期弱运动惯性传感器包括具有框架安装表面的框架，具有可移动质量安装表面的可移动质量块，用于感测可移动块体相对于框架的位移的换能器，以及用于悬挂的单片挠曲元件 框架中的可移动质量块。 整体式弯曲元件包括：刚性框架一体式夹具，可附接到框架的框架安装表面，刚性可移动质量一体式夹具，可附接到可移动质量块的可移动质量安装表面，以及最硬的柔性区域，用于可操作地连接框架整体 夹紧到可移动质量积分夹。 框架和可移动的质量安装表面不与最硬的柔性区域重叠，从而最小化蠕变和滞后噪声的产生。 单块挠曲元件的刚度变化通过沿挠曲元件的长度变化的厚度来控制。
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公开(公告)号：US20100226211A1
公开(公告)日：2010-09-09
申请号：US12709443
申请日：2010-02-19
IPC分类号： G01V1/18
CPC分类号： G01V1/181
摘要： A broadband weak-motion seismometer includes: a frame, a mass, a suspension means for movably connecting the mass to the frame, a sensing transducer for measuring displacement of the mass with respect to the frame and for generating a sensing transducer output signal, which is a function of the measured displacement, a forcing transducer for applying a feedback force in a predetermined direction to the mass, and a control circuit. The control circuit receives the sensing transducer output signal and generates a forcing transducer input signal that includes a self-noise component. The forcing transducer input signal is processed by the forcing transducer to apply the feedback force to maintain the mass at rest with respect to the frame. The feedback force is sufficient to counterbalance a constant acceleration of the frame of at least 0.2 m/s2 in the predetermined direction of the feedback force. The self-noise component of the forcing transducer input signal, when processed by the forcing transducer, produces variable acceleration of the mass with spectral density less than −150 dB with respect to 1 m2/s3 at 0.01 Hz.
摘要翻译： 宽带弱运动地震仪包括：框架，质量块，用于将质量块可移动地连接到框架的悬挂装置，用于测量质量相对于框架的位移并用于产生感测换能器输出信号的感测传感器，其中 是测量的位移的函数，用于向质量施加沿预定方向的反馈力的强制换能器和控制电路。 控制电路接收感测传感器输出信号并产生包括自噪声分量的强制传感器输入信号。 强制传感器输入信号由强制传感器处理，以施加反馈力以使质量相对于框架保持静止。 反馈力足以在反馈力的预定方向上平衡框架的恒定加速度为至少0.2m / s2。 强制传感器输入信号的自噪声分量在强制传感器处理时，产生质量的可变加速度，频谱密度小于-150 dB，相对于0.01 Hz时的1 m2 / s3。
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公开(公告)号：US20080148851A1
公开(公告)日：2008-06-26
申请号：US11945052
申请日：2007-11-26
IPC分类号： G01P15/00
CPC分类号： G01V1/181 , G01P15/08 , G01P15/125 , G01P2015/0814 , G01P2015/0828
摘要： A long-period weak-motion inertial sensor includes a frame having a frame mounting surface, a movable mass having a movable mass mounting surface, a transducer for sensing displacements of the movable mass with respect to the frame, and a monolithic flexure element for suspending the movable mass in the frame. The monolithic flexure element includes: a stiff frame integral clamp attachable to the frame mounting surface of the frame, a stiff movable mass integral clamp attachable to the movable mass mounting surface of the movable mass, and a stiffest flexible region for operatively connecting the frame integral clamp to the movable mass integral clamp. The frame and movable mass mounting surfaces do not overlap the stiffest flexible region, thereby minimizing the generation of creep and hysteresis noise. The variation in stiffness of the monolithic flexure element is controlled by varying thickness along the length of the flexure element.
摘要翻译： 长周期弱运动惯性传感器包括具有框架安装表面的框架，具有可移动质量安装表面的可移动质量块，用于感测可移动块体相对于框架的位移的换能器，以及用于悬挂的单片挠曲元件 框架中的可移动质量块。 整体式弯曲元件包括：刚性框架一体式夹具，可附接到框架的框架安装表面，刚性可移动质量一体式夹具，可附接到可移动质量块的可移动质量安装表面，以及最硬的柔性区域，用于可操作地连接框架整体 夹紧到可移动质量积分夹。 框架和可移动的质量安装表面不与最硬的柔性区域重叠，从而最小化蠕变和滞后噪声的产生。 单块挠曲元件的刚度变化通过沿挠曲元件的长度变化的厚度来控制。
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