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    • 8. 发明专利
    • Nonresonant micromachined gyroscope having mode decoupled structure
    • 具有模式解构结构的非骨骼微血管造影
    • JP2005249784A
    • 2005-09-15
    • JP2005053238
    • 2005-02-28
    • Univ Californiaザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア
    • ACAR CENKSHKEL ANDREI M
    • G01P9/04G01C19/56
    • G01C19/5719
    • PROBLEM TO BE SOLVED: To attain a large oscillation amplitude without resonance, in a four-degrees-of-freedom nonresonant micromachined gyroscope, using dynamical amplification both in a 2-degree-of-freedom drive-directional oscillator and a 2-degree-of-freedom sensing-directional oscillator having decoupled structure. SOLUTION: The overall 4--degree-of-freedom dynamical system is provided with three proof masses. The second and third masses form the 2-degree-of-freedom sensing-directional oscillator. The first mass and the combination of the second and third masses form the 2-degree-of-freedom drive-directional oscillator. Frequency responses of the drive mode oscillator and sensing-mode oscillator have two resonant peaks and a flat region between the peaks. A device thereof is nominally operated in the flat regions of response curves belonging to the drive mode oscillator and sensing-mode oscillator, and a gain in the region is less sensitive to frequency fluctuation. This is achieved by designing anti-resonance frequencies for drive and sensing to be matched. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题为了在没有共振的情况下获得大的振荡幅度,在四自由度非谐振微加工陀螺仪中,使用在2自由度驱动方向振荡器和2自由度驱动方向振荡器中的动态放大 具有解耦结构的自由度感应定向振荡器。 解决方案:整体4自由度动力系统提供三个质量体系。 第二和第三质量形成2度自由度感应定向振荡器。 第一质量和第二和第三质量的组合形成2自由度驱动方向振荡器。 驱动模式振荡器和感测模式振荡器的频率响应具有两个谐振峰值和峰值之间的平坦区域。 其装置名义上在属于驱动模式振荡器和感测模式振荡器的响应曲线的平坦区域中工作,并且该区域中的增益对频率波动较不敏感。 这是通过设计用于驱动和感测匹配的反共振频率来实现的。 版权所有(C)2005,JPO&NCIPI