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    • 2. 发明授权
    • Atomic referenced optical accelerometer
    • 原子参考光学加速度计
    • US09417261B2
    • 2016-08-16
    • US14162697
    • 2014-01-23
    • Honeywell International Inc.
    • Kenneth SalitMary SalitRobert ComptonJeff A. RidleyKarl Nelson
    • G01P15/093B81B7/02G01P15/12G01P1/00G01P15/13
    • G01P15/093B81B7/02G01P1/006G01P15/08G01P15/12G01P15/131
    • In some examples, a micro-electro-mechanical system (MEMS) optical accelerometer includes a housing comprising an internal chamber that includes a Fabry-Perot cavity and a proof mass affixed to the housing via one or more elastic elements, a light source configured to emit radiation, a first detector configured to receive radiation transmitted through the Fabry-Perot cavity and configured to generate one or more signals that indicate a position of the proof mass. The MEMS optical accelerometer further comprises an atomic wavelength reference and a second detector configured to detect radiation transmitted through the atomic wavelength reference and configured to generate one or more signals that indicate a wavelength of the radiation emitted by the light source, and a servomechanism electrically coupled to the second photo detector and the light source, configured to adjust the light source to maintain the radiation emitted by the light source at approximately a selected wavelength.
    • 在一些示例中,微电子机械系统(MEMS)光学加速度计包括壳体,该壳体包括内部腔室,该内部腔室包括法布里 - 珀罗空腔和经由一个或多个弹性元件固定到壳体的校验物质, 发射辐射,第一检测器被配置为接收透射通过法布里 - 珀罗腔的辐射并被配置为产生指示证明质量位置的一个或多个信号。 MEMS光学加速度计还包括原子波长参考和第二检测器,其被配置为检测透射原子波长参考的辐射并被配置为产生指示由光源发射的辐射的波长的一个或多个信号,以及电耦合的伺服机构 所述第二光检测器和所述光源被配置为调节所述光源以将由所述光源发射的辐射保持在大致选定的波长。
    • 3. 发明申请
    • HIGH-OUTPUT MEMS ACCELEROMETER
    • 高输出MEMS加速度计
    • US20150346235A1
    • 2015-12-03
    • US14293992
    • 2014-06-02
    • Meggitt (Orange County), Inc.
    • TOM KWA
    • G01P15/12B81B3/00
    • G01P15/123B81B3/0021B81B2201/0235B81B2203/0109G01P15/09G01P15/12G01P2015/0831
    • A MEMS acceleration sensor is provided. In one embodiment, the MEMS acceleration sensor comprises: a frame; a first proofmass located within the frame, the first proofmass including a left side, right side, top, and bottom; an axis running from the left side to the right side at about a median point between the top and bottom; a first flexure running along the axis and coupling the left side to the frame; a second flexure running along the axis and coupling the right side to the frame; a first channel that extends from the bottom up past the axis to a first channel end; a second channel that extends from the top down past the axis to a second channel end; a second proofmass located within the first channel and coupled to the first proofmass via a first hinge and a first gauge at the first channel end and coupled to the frame at the bottom via a second hinge and a second gauge; and a third proofmass located within the second channel and coupled to the first proofmass via a third hinge and a third gauge at the second channel end and coupled to the frame at the top via a fourth hinge and a fourth gauge.
    • 提供了MEMS加速度传感器。 在一个实施例中,MEMS加速度传感器包括:框架; 位于框架内的第一个校样,第一个校样包括左侧,右侧,顶部和底部; 从左侧到右侧的中心点处于顶部和底部之间的中心点的轴线; 第一挠曲件沿轴线延伸并将左侧连接到框架; 第二挠曲件沿轴线延伸并将右侧连接到框架; 从底部向上延伸穿过轴线到第一通道端的第一通道; 第二通道,其从顶部向下延伸穿过轴线到第二通道端; 位于所述第一通道内并且经由第一铰链和所述第一通道端处的第一量规耦合到所述第一校样的第二校正件,并且经由第二铰链和第二量规在所述底部处联接到所述框架; 以及位于所述第二通道内的第三校样物,并且经由所述第二通道端部处的第三铰链和第三量规耦合到所述第一校样,并且经由第四铰链和第四量规耦合到所述顶部的框架。
    • 6. 发明申请
    • SENSOR
    • 传感器
    • US20110192228A1
    • 2011-08-11
    • US13017212
    • 2011-01-31
    • Nobuyuki NagaiYusaku Kato
    • Nobuyuki NagaiYusaku Kato
    • G01P15/00
    • G01P15/12G01C19/00G01P15/0888G01P15/18
    • A sensor includes: a first polymer sensor element generating a first voltage corresponding to a deformation thereof; a second polymer sensor element generating a second voltage corresponding to a deformation thereof; a fixing member fixing a first end of each of the first and the second polymer sensor elements while electrically insulating the first ends from each other; and a detector detecting an acceleration and an angular acceleration based on the first voltage derived from the first polymer sensor element and the second voltage derived from the second polymer sensor element.
    • 传感器包括:第一聚合物传感器元件,其产生对应于其变形的第一电压; 产生对应于其变形的第二电压的第二聚合物传感器元件; 固定构件,其将所述第一和第二聚合物传感器元件中的每一个的第一端固定,同时使所述第一端部彼此电绝缘; 以及基于从第一聚合物传感器元件导出的第一电压和从第二聚合物传感器元件导出的第二电压来检测加速度和角加速度的检测器。
    • 10. 发明授权
    • Transducer circuit having negative integral feedback
    • 具有负整体反馈的传感器电路
    • US5481905A
    • 1996-01-09
    • US970746
    • 1992-11-03
    • Bud E. Pratt
    • Bud E. Pratt
    • G01L9/00G01L9/04G01P15/12G01P15/00
    • G01L19/0084G01L19/0645G01L19/148G01L9/0042G01L9/045G01P15/12Y10S73/90
    • A transducer circuit which includes a Wheatstone bridge balanced by negative integral feedback. The bridge includes responsive elements formed on a thin resilent diaphragm. When subjected to a force, the diaphragm deflects and unbalances the bridge. The unbalanced bridge produces an output voltage which drives an integrator having an output voltage that is an integral of the bridge output voltage. The integrator output voltage is applied to the bridge as negative feedback to rebalance the bridge. The integrator includes a capacitor which introduces a time delay to assure that the feedback is always negative. The negative feedback provides stability for the circuit. The integrator output voltage drives indicating and/or auxiliary devices. The complete transducer circuit may be disposed within a sealed module having the diaphragm as a surface.
    • 一种换能器电路,其包括由负整体反馈平衡的惠斯通电桥。 桥梁包括形成在薄弹性隔膜上的响应元件。 当受到力时,隔膜使桥梁偏转和不平衡。 不平衡桥产生输出电压,其驱动具有作为桥输出电压的积分的输出电压的积分器。 积分器输出电压作为负反馈施加到桥梁,以重新平衡桥。 积分器包括引入时间延迟以确保反馈总是为负的电容器。 负反馈为电路提供稳定性。 积分器输出电压驱动指示和/或辅助设备。 完整的换能器电路可以设置在具有隔膜作为表面的密封模块内。