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    • 2. 发明授权
    • Asymmetric flexure for pendulous accelerometer
    • 下摆加速度计的不对称弯曲
    • US4944184A
    • 1990-07-31
    • US338808
    • 1989-04-14
    • Graeme A. BlakeBrian L. NorlingMitchell J. Novack
    • Graeme A. BlakeBrian L. NorlingMitchell J. Novack
    • G01P15/02G01P15/125G01P15/13
    • G01P15/125G01P15/132G01P2015/0828
    • An improved accelerometer of the type that includes a proof mass suspended from a support by one or more flexures, such that the proof mass can pivot with respect to the support about a hinge axis. The proof mass includes a paddle attached to the flexures, the paddle having first and second paddle surfaces. The coil is mounted on the first paddle surface, and the accelerometer includes a stator for mounting the support and for forming a magnetic circuit with the coil. The improvement comprises positioning the flexures such that a plane containing the hinge axis and the center of mass of the proof mass is parallel to one of the paddle surfaces, and closer to one paddle surface than to the other paddle surface. In a preferred arrangement, the plane containing the hinge axis and the center of mass is approximately coplanar with one of the paddle surfaces and with the flexures.
    • 一种改进的加速度计,其包括通过一个或多个挠曲件从支撑件悬挂的证明物质,使得证明物质可以围绕铰链轴线相对于支撑件枢转。 检测质量包括附接到挠曲件的桨叶,桨具有第一和第二桨叶表面。 线圈安装在第一桨表面上,并且加速度计包括用于安装支撑件并用于与线圈形成磁路的定子。 该改进包括定位弯曲部,使得包含铰链轴线的平面和检测质量块的质心平行于其中一个桨叶表面,并且比另一个桨叶表面更接近一个桨叶表面。 在优选的布置中,包含铰链轴线和质心的平面与桨形表面中的一个和挠曲件近似共面。
    • 5. 发明授权
    • Acceleration overload protection mechanism for sensor devices
    • 传感器装置的加速过载保护机构
    • US5275048A
    • 1994-01-04
    • US822778
    • 1992-01-21
    • Rand H. Hulsing, IIBrian L. NorlingJames R. Woodruff
    • Rand H. Hulsing, IIBrian L. NorlingJames R. Woodruff
    • G01P15/02
    • G01P15/02
    • An acceleration overload protection mechanism for use with a sensor unit. The sensor unit is generally defined by a sensor element or elements (i.e., proof mass, flexures, etc.) that are movable in relation to a sensor frame. The overload protection mechanism includes at least one arresting plate. The arresting plate includes a plate frame and an arresting element that are elastically coupled to one another to permit relative movement therebetween. The plate frame of the overload protection mechanism is placed in fixed alignment with the sensor frame to place the arresting element in spaced relation with the sensor element of the sensor unit. The arresting element and sensor element may move relative to one another to allow the arresting element to move to a position proximate the sensor element to limit the range of motion of the sensor element when the sensor unit is subject to an acceleration overload. Projections extend between the arresting element and sensor unit to engage corresponding channels thereby protecting the sensor unit from damage due to cross-axis accelerations.
    • 用于传感器单元的加速过载保护机构。 传感器单元通常由相对于传感器框架可移动的传感器元件(即,检验质量块,挠曲件等)限定。 过载保护机构包括至少一个止动板。 止动板包括板框架和止动元件,其相互弹性地联接以允许它们之间的相对移动。 过载保护机构的平板框架与传感器框架固定对准,以将止动元件与传感器单元的传感器元件间隔开。 阻止元件和传感器元件可以相对于彼此移动,以允许止动元件移动到靠近传感器元件的位置,以在传感器单元经受加速过载时限制传感器元件的运动范围。 突出部分在阻止元件和传感器单元之间延伸以接合相应的通道,从而保护传感器单元免受横轴加速度的损害。
    • 7. 发明授权
    • Resonant micromachined biochemical sensor
    • 共振微加工生化传感器
    • US09222867B2
    • 2015-12-29
    • US13476989
    • 2012-05-21
    • Brian L. NorlingJohn C. G. Dunfield
    • Brian L. NorlingJohn C. G. Dunfield
    • G01R33/00G01R33/34G01N5/02G01R33/028G01N1/40G01R33/12G01N1/22
    • G01N5/02G01N1/405G01N2001/2223G01R33/0286G01R33/1261
    • A sensor system is formed from a micro machined resonant structure with multiple resonant elements, a tracking resonator control electronics, and signal processing algorithms. The moving elements of the resonator are coated with chemically active materials that change mass when exposed to the target chemical resulting in a change in frequency or period of oscillation. The changes in frequency or period are processed by multi-sensor chemical detection algorithms to identify chemical types and concentrations. In essence, the resonator and drive electronics form a closed loop oscillator operating at the resonator's natural frequency. The resonators are formed from silicon using photolithographic processes. The resonator design includes in-plane resonant motion combined with dynamic balance to operate with a high Q even in the presence of atmospheric pressure.
    • 传感器系统由具有多个谐振元件的微加工谐振结构,跟踪谐振器控制电子器件和信号处理算法形成。 谐振器的移动元件涂覆有化学活性材料,其在暴露于目标化学物质时改变质量,导致振荡频率或振荡周期的变化。 频率或周期的变化由多传感器化学检测算法处理,以识别化学类型和浓度。 实质上,谐振器和驱动电子器件形成以谐振器的固有频率工作的闭环振荡器。 谐振器由使用光刻工艺的硅形成。 谐振器设计包括平面内谐振运动与动平衡结合,即使在大气压力存在的情况下也能以高Q运行。
    • 8. 再颁专利
    • Stress compensated transducer
    • 应力补偿传感器
    • USRE34631E
    • 1994-06-07
    • US898963
    • 1992-06-12
    • Brian L. Norling
    • Brian L. Norling
    • G01P15/125G01P1/00G01P15/13
    • G01P1/006G01P15/132G01P2015/0828
    • A transducer having compensation for a deflection due to an applied stress. The transducer includes a support ring (32) having a proof mass (34) cantilevered on a pair of flexures (38) between the magnets (26,28) of a stator in which the transducer is mounted. Deflection of the support ring due to an imbalanced applied force is compensated by either moving the pads (30) used to mount the support ring, moving the centroid of capacitance (42) of the proof mass, or by modifying the support ring to provide a pair of moment arms (152), each approach insuring that an axis of deflection (102,130) of the support ring is coaligned with the centroid of capacitance, thereby minimizing a bias error in the transducer output.
    • 具有由于施加的应力引起的偏转补偿的换能器。 换能器包括支撑环(32),该支撑环具有悬挂在定子的磁体(26,28)之间的一对挠曲件(38)上的检测质量块(34),其中安装有换能器。 通过移动用于安装支撑环的垫(30),移动检体的电容(42)的质心,或通过修改支撑环来提供由于不平衡施加力而引起的支撑环的偏转, 一对力臂(152),每个方法确保支撑环的偏转轴线(102,130)与电容的重心相结合,从而最小化换能器输出中的偏置误差。
    • 10. 发明授权
    • Translational accelerometer and accelerometer assembly method
    • 平移加速度计和加速度计组装方法
    • US4872342A
    • 1989-10-10
    • US222680
    • 1988-07-21
    • Richard A. HansonRex B. PetersBrian L. NorlingEdward A. Urbach
    • Richard A. HansonRex B. PetersBrian L. NorlingEdward A. Urbach
    • G01P15/08G01P15/097G01P15/10
    • G01P15/097G01P15/0888G01P2015/0828Y10T29/49007
    • An accelerometer comprising a body (10, 16, 12), a proof mass (18, 30, 32), a mounting strucutre comprising flexures (20, 22) for mounting the proof mass to the body, and force sensing elements (34, 38). The flexures permit translational motion of the proof mass with respect to the body along a sensitive axis SA and rotation of the proof mass with respect to the body about a hinge axis HA that is perpendicular to the sensitive axis. Acceleration of the accelerometer along the sensitive axis results in translational motion of the proof mass along the sensitive axis. The force sensing elements reacts to such translational motion by producing a signal indicative of acceleration along the sensitive axis. In a preferred embodiment, the mounting structure comprises a pair of fused quartz flexures that are oppositely directed with respect to one another, and the force sensing elements comprise a pair of vibrating beam force transducers that are connected to the proof mass on opposite sides of the hinge axis from one another. The described assembly method for accelerometers comprises forming bridges between the proof mass and body, the bridges being removed after attachment of the force sensing elements.
    • 1.一种加速度计,包括主体(10,16,12),检验质量块(18,30,32),安装结构,其包括用于将所述证明物质安装到所述主体的挠曲件(20,22),以及力传感元件(34, 38)。 挠曲件允许检测质量体沿着敏感轴线SA相对于身体的平移运动,并且证明物质相对于身体围绕垂直于敏感轴线的铰链轴线HA旋转。 加速度传感器沿着敏感轴的加速导致检测质量沿着敏感轴的平移运动。 力感测元件通过产生指示沿着敏感轴的加速度的信号来对这种平移运动做出反应。 在优选实施例中,安装结构包括相对于彼此相对地指向的一对熔融石英弯曲部,并且力感测元件包括一对振动梁力传感器,其连接到在 铰链轴彼此。 所描述的用于加速度计的装配方法包括在检验质量块和本体之间形成桥,桥接件在附接力感测元件之后被移除。