Vibrating beam accelerometer with improved performance in vibration environments
    1.
    发明授权
    Vibrating beam accelerometer with improved performance in vibration environments 有权
    振动光束加速度计,在振动环境中具有改进的性能

    公开(公告)号:US08117917B2

    公开(公告)日:2012-02-21

    申请号:US12057192

    申请日:2008-03-27

    Inventor: Mitchell Novack

    CPC classification number: G01P15/097

    Abstract: An accelerometer that has a cross coupling coefficient due to pendulum droop of the proof mass that is approximately equal and opposite in sign to a cross coupling coefficient due to resonator nonlinearity. The accelerometer includes a proof mass, a housing having at least two opposing interior walls, and one or more flexures for flexibly connecting the proof mass at a first end to a first one of the opposing walls of the housing. A first resonator is connected to a first surface of the proof mass at an end of the proof mass opposite the first end and to the housing wall that is not attached to the flexure. A second resonator is connected to a second surface of the proof mass and the housing wall that receives the first resonator. The second surface is on an opposite side of the proof mass as the first surface.

    Abstract translation: 加速度计由于谐振器非线性而产生的交叉耦合系数由于摆锤下垂而产生的交叉耦合系数。 加速度计包括检测质量块,具有至少两个相对的内壁的壳体,以及一个或多个挠曲件,用于将第一端部的证明物质与壳体的相对的壁中的第一壁柔性连接。 第一谐振器在与第一端相对的证明块的端部与未附接到挠曲件的壳体壁连接到校验块的第一表面。 第二谐振器连接到接收第一谐振器的校验块的第二表面和壳体壁。 第二表面位于与第一表面相反的一侧。

    VIBRATING BEAM ACCELEROMETER WITH IMPROVED PERFORMANCE IN VIBRATION ENVIRONMENTS
    2.
    发明申请
    VIBRATING BEAM ACCELEROMETER WITH IMPROVED PERFORMANCE IN VIBRATION ENVIRONMENTS 有权
    具振动环境改善性能的振动梁加速度计

    公开(公告)号:US20090241665A1

    公开(公告)日:2009-10-01

    申请号:US12057192

    申请日:2008-03-27

    Inventor: Mitchell Novack

    CPC classification number: G01P15/097

    Abstract: An accelerometer that has a cross coupling coefficient due to pendulum droop of the proof mass that is approximately equal and opposite in sign to a cross coupling coefficient due to resonator nonlinearity. The accelerometer includes a proof mass, a housing having at least two opposing interior walls, and one or more flexures for flexibly connecting the proof mass at a first end to a first one of the opposing walls of the housing. A first resonator is connected to a first surface of the proof mass at an end of the proof mass opposite the first end and to the housing wall that is not attached to the flexure. A second resonator is connected to a second surface of the proof mass and the housing wall that receives the first resonator. The second surface is on an opposite side of the proof mass as the first surface.

    Abstract translation: 加速度计由于谐振器非线性而产生的交叉耦合系数由于摆锤下垂而产生的交叉耦合系数。 加速度计包括检测质量块,具有至少两个相对的内壁的壳体,以及一个或多个挠曲件,用于将第一端部的证明物质与壳体的相对的壁中的第一壁柔性连接。 第一谐振器在与第一端相对的证明块的端部与未附接到挠曲件的壳体壁连接到校验块的第一表面。 第二谐振器连接到接收第一谐振器的校验块的第二表面和壳体壁。 第二表面位于与第一表面相反的一侧。

    Electrode configuration for vibrating beam transducers
    3.
    发明授权
    Electrode configuration for vibrating beam transducers 失效
    振动光束传感器的电极配置

    公开(公告)号:US4929860A

    公开(公告)日:1990-05-29

    申请号:US194806

    申请日:1988-05-17

    CPC classification number: G01L1/10 G01L9/0022 G01P15/097 H01L41/047

    Abstract: A technique is described for tailoring the configuration of electrodes on a piezoelectric beam such that the tendency of the beam to vibrate in a predetermined flexure mode is enhanced. The mode has a predetermined longitudinal strain versus longitudinal position profile. At least two electrodes are mounted on the beam, and the configuration of at least one electrode varies as a function of longitudinal position, such that when a voltage difference is applied between the electrodes, the longitudinal force produced by the electrodes, as a function of longitudinal position, approximates the longitudinal strain versus longitudinal position profile. The configuration may be varied by varying the width of the electrode or the position of the electrode on the underlying beam surface.

    Abstract translation: 描述了一种技术来定制压电梁上的电极的配置,使得光束以预定的弯曲模式振动的趋势被增强。 该模式具有预定的纵向应变与纵向位置分布。 至少两个电极安装在梁上,并且至少一个电极的构型随着纵向位置的变化而变化,使得当在电极之间施加电压差时,由电极产生的纵向力作为 纵向位置近似纵向应变与纵向位置分布。 可以通过改变电极的宽度或在下面的光束表面上的电极的位置来改变配置。

    Vibrating beam force transducer
    4.
    发明申请
    Vibrating beam force transducer 有权
    振动梁力传感器

    公开(公告)号:US20070144269A1

    公开(公告)日:2007-06-28

    申请号:US11317384

    申请日:2005-12-22

    Inventor: Mitchell Novack

    CPC classification number: G01L1/106 G01L1/162 G01L1/183

    Abstract: An apparatus and method for monolithic force transducers in which a sensed force is applied across only two ends of a pair of force sensing elements so that the pair of force sensing elements are loaded in series with one in compression and the other in tension, whereby the force sensed by each of the two force sensing elements are identically equal in magnitude but opposite in sense.

    Abstract translation: 一种用于单片力传感器的装置和方法,其中感测的力仅施加在一对力感测元件的两端上,使得一对力感测元件与压缩装置中的一对力被加载,另一个在张力下被加载,由此 两个力感测元件中的每一个感测到的力在大小上是相同的,但在意义上是相反的。

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