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1. 发明授权

US5237871A Vibration attenuation assembly with venting passageway 失效
标题翻译：具有排气通道的减振组件
公开(公告)号：US5237871A
公开(公告)日：1993-08-24
申请号：US889966
申请日：1992-05-29
申请人： Frederick H. Henderson , Roy D. Whitehead
发明人： Frederick H. Henderson , Roy D. Whitehead
IPC分类号： F16F15/023 , F16F15/06 , F16F15/067 , G01P15/08
CPC分类号： F16F15/023 , F16F15/06 , F16F15/067 , G01P15/08
摘要： The present invention features a vibration attenuation assembly designed for the protection of single axis instruments such as accelerometers. The assembly includes an inner cylinder housing one or more single axis accelerometers co-aligned with a principle axis of the cylinder. The inner cylinder is suspended by three or more equally spaced springs at each end. The springs also function as electrical conductors for transmitting power and signals to the accelerometer. The inner cylinder is longitudinally shiftable within the outer cylinder and a main fluid cavity exists between the exterior surface of the inner cylinder and the inner surface of the outer cylinder. A rigid outer cap is provided at both ends of the outer cylinder and a rigid inner cap is provided at both ends of the inner cylinder. A damping fluid end cavity is provided between an end cap of the inner cylinder and an adjacent end cap of the outer cylinder and at least one longitudinally extending vent passageway, formed either on the inner or outer cylinder, opens into the damping fluid end cavity. The vent passageway or passageways extend the longitudinal length of the inner cylinder when they are integrally formed with the inner cylinder.
摘要翻译：本发明的特征在于设计用于保护单轴仪器如加速度计的振动衰减组件。组件包括容纳与气缸的主轴共同对准的一个或多个单轴加速度计的内筒。内筒在每一端由三个或更多等间距的弹簧悬挂。弹簧还用作用于将功率和信号传输到加速度计的电导体。内筒可以在外筒内纵向移位，并且在内筒的外表面和外筒的内表面之间存在主流体腔。在外筒的两端设有刚性的外盖，在内筒的两端设有刚性的内盖。阻尼流体端腔设置在内筒的端盖和外筒的相邻端盖之间，并且形成在内筒或外筒上的至少一个纵向延伸的通气通道通向阻尼流体端腔。排气通道或通道在与内筒一体形成时延伸内筒的纵向长度。

2. 发明授权

US5117695A Vibration attenuation assembly 失效
标题翻译：减振组件
公开(公告)号：US5117695A
公开(公告)日：1992-06-02
申请号：US597717
申请日：1990-10-12
申请人： Frederick H. Henderson , Roy D. Whitehead
发明人： Frederick H. Henderson , Roy D. Whitehead
IPC分类号： F16F15/023 , F16F15/06 , F16F15/067 , G01P15/08
CPC分类号： F16F15/067 , F16F15/023 , F16F15/06 , G01P15/08
摘要： The present invention features a vibration attenuation assembly designed for the protection of single axis instruments such as accelerometers. The assembly includes an inner cylinder housing one or more single axis accelerometers co-aligned with a principle axis of the cylinder. The inner cylinder is suspended by three or more equally spaced springs at each end. In one embodiment, damping fluid is maintained between the inner cylindrical surface of the housing and the suspended cylinder to provide damping and a thermal path. The springs also function as electrical conductors for transmitting power and signals to the accelerometer. Damping fluid retention between the inner and outer cylinder can be accomplished by use of a diaphragm or bellows as a physical barrier. Alternatively, retention of the damping fluid can be accomplished without a physical barrier by use of fluid adhesion which has particular applicability in low gravity environments such as space. Damping can also be accomplished through use of eddy current damping structures or by the inclusion of damping material to the springs. An alternate spring system uses fluid springs which are maintained in wells and are formed of a conductive material. A securement system for preventing dispersion of the fluid spring when large accelerations are anticipated is also provided. In addition, a fixing structure which locks the inner cylinder to the outer cylinder can be used when high gravitational forces are anticipated.
摘要翻译：本发明的特征在于设计用于保护单轴仪器如加速度计的振动衰减组件。组件包括容纳与气缸的主轴共同对准的一个或多个单轴加速度计的内筒。内筒在每一端由三个或更多等间距的弹簧悬挂。在一个实施例中，阻尼流体保持在壳体的内圆柱形表面和悬挂圆柱体之间，以提供阻尼和热路径。弹簧还用作用于将功率和信号传输到加速度计的电导体。可以通过使用隔膜或波纹管作为物理屏障来实现内外筒之间的阻尼流体保持。或者，可以通过使用在低重力环境（例如空间）中具有特别适用性的流体粘附来实现阻尼流体的保持而不产生物理屏障。阻尼也可以通过使用涡流阻尼结构或通过将阻尼材料包含在弹簧中来实现。备用弹簧系统使用保持在井中并由导电材料形成的流体弹簧。还提供了一种用于在预期大的加速度时防止流体弹簧分散的固定系统。此外，当预期高重力时，可以使用将内筒锁定到外筒的固定结构。

3. 发明授权

US5203199A Controlled acceleration platform 失效
标题翻译：受控加速平台
公开(公告)号：US5203199A
公开(公告)日：1993-04-20
申请号：US597716
申请日：1990-10-12
申请人： Frederick H. Henderson , Arthur R. Thorne , Hardin Joyce, Jr.
发明人： Frederick H. Henderson , Arthur R. Thorne , Hardin Joyce, Jr.
IPC分类号： G01P21/00
CPC分类号： G01P21/00
摘要： A controlled acceleration platform which provides a horizontally quiet platform capable of accurate acceleration and angular control. An object at or near the center of percussion of the pendulum assembly experiences reduced seismic and cultural ground vibration, and experiences negligible hysteresis and stiction for minute adjustment in inclination. By rigidly attaching the device to a single pivot or flexure so as to isolate the accelerometer from seismic or cultural vibration, the small tilt associated with pendulus motion at the proper radius from the flexure completely cancels the inertial term. The suspended item is also isolated from small error producing effects such as earth tide, local ground swell from solar heating, and far field gravity changes as produced by the sun and the moon. The lateral acceleration sensed by the suspended item may be adjusted by controlling tilt of the platform. This can be done by adding weight at a distance from the center line. With an accelerometer attached, the platform can also be used to measure very minute applications of force. The pendulus platform can be used to calibrate accelerometers through the addition or removal of weight at a distance from the center of gravity or by the relatively large lateral displacement of a small mass. A supporting platform for the pendulus platform is provided with either passive or active damping (or both). When damping of the supporting structure is used, this is not sensed by a horizontally mounted accelerometer under test as the damping takes place external to the pivot point of the pendulus platform and thus the accelerometer positioned at the center of percussion is not appreciably affected.
摘要翻译：一个受控的加速平台，提供一个水平安静的平台，能够进行精确的加速和角度控制。钟摆组件撞击中心附近的一个物体经历了减少的地震和文化地面振动，并且经历可忽略的倾斜微小调整的滞后和静摩擦。通过将装置刚性地附接到单个枢轴或挠曲件上，以将加速度计与地震或文化振动隔离，与弯曲的适当半径处的襟翼运动相关联的小倾斜完全抵消了惯性项。暂停物品也与小错误产生的影响隔离，如地球潮湿，太阳能加热引起的局部地面膨胀，以及太阳和月亮产生的远场重力变化。可以通过控制平台的倾斜度来调节悬挂物体感测到的横向加速度。这可以通过在距中心线一定距离处增加重量来实现。通过附加的加速度计，该平台也可用于测量非常小的力的应用。襟翼平台可用于通过在与重心相距一定距离处加入或移除重量或通过小质量的相对较大的侧向位移校准加速度计。摆动平台的支撑平台提供无源或主动阻尼（或两者）。当使用支撑结构的阻尼时，由于阻尼发生在襟翼平台的枢转点外部，因此在位于撞击中心的加速度计不会受到明显的影响，水平安装的加速度计在测试中不被感测到。

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