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首页> 外文期刊>Mechanical systems and signal processing >Internal resonance in coupled oscillators - Part Ⅰ: A double amplification mass sensing scheme without Duffing nonlinearity
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Internal resonance in coupled oscillators - Part Ⅰ: A double amplification mass sensing scheme without Duffing nonlinearity

机译：耦合振荡器的内部共振 - 第Ⅰ部分：无损坏非线性的双扩增质量传感方案

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摘要

This paper, the first of two companion papers, mainly reports a double amplification scheme for mass sensitivity, via a differential phenomenon in various non-Duffing internal resonance systems with even power nonlinearities and coupling. Both frequency sum and amplitude difference of the two symmetrical peaks, in response amplitude of the basic mode, are capable of differentially amplifying the sensitivity as well as greatly suppressing the effect of noise caused by driving amplitude fluctuation. Combining frequency up-conversion to further amplify the sensitivity, double amplified mass sensitivity is thus achieved via frequency shift. Magnetically coupled orthogonal beams with a frequency ratio of two to one, is adopted as an example for both theoretical and experimental demonstration. Experimental results show effect of driving voltage fluctuating in the range of 200 mV to 600 mV is reduced by 360%, as well as the sensitivity for mass perturbation in the range of 0 g to 10 g is 332% amplified. Lower driving threshold and wider sensing range are further obtained through adjusting modal damping. Compared to those based on synchronization or internal resonance under the same frequency ratios, the proposed amplification scheme, not only enhances the mass sensitivity up to about 166%, but also suppresses the effect of driving amplitude fluctuation down to about 27.8%, indicating a potential possibility to break through the sensing limit.
机译：本文是两个伴随论文的第一个，主要报告了一种双放大方案，以通过各种非达窝内部共振系统中的差分现象，甚至具有甚至电力非线性和耦合。在基本模式的响应幅度的两个对称峰的频率和幅度差异能够差分地放大灵敏度，并且大大抑制由驱动幅度波动引起的噪声的效果。组合频率上转换以进一步放大灵敏度，因此通过频移实现了双放大的质量敏感性。采用频率比为2至1的磁耦合正交波束作为理论和实验示范的示例。实验结果表明，200mV至600mV范围内的驱动电压波动的效果减少了360％，以及0g至10g范围内的质量扰动的灵敏度为332％。通过调节模态阻尼进一步获得较低的驱动阈值和更广泛的感测范围。与基于同一频率比的同步或内部共振的那些相比，所提出的扩增方案，不仅提高了高达约166％的质量敏感性，而且抑制了驱动幅度波动下降到约27.8％的效果，表明潜在可能突破传感极限。

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  • 来源
    《Mechanical systems and signal processing》 |2021年第10期|107886.1-107886.12|共12页
  • 作者

    Cao Xia; Dong F. Wang; Takahito Ono; Toshihiro Itoh; Masayoshi Esashi;

  • 作者单位

    Micro Engineering and Micro Systems Laboratory (JML) School of Mechanical and Aerospace Engineering (SMAE) Jilin University Changchun 130025 China;

    Micro Engineering and Micro Systems Laboratory (JML) School of Mechanical and Aerospace Engineering (SMAE) Jilin University Changchun 130025 China Research Center for Ubiquitous MEMS and Micro Engineering National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8564 Japan;

    Department of Mechanical Systems and Design Tohoku University Sendai 980-8579 Japan;

    Research Center for Ubiquitous MEMS and Micro Engineering National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8564 Japan Department of Precision Engineering The University of Tokyo Tokyo U3-8656 Japan;

    WPI Advanced Institute for Materials Research Tohoku University Sendai 980-8577 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Differential internal resonance; Double sensitivity amplification; Ultimate sensing; Frequency multiplication; Magnetic coupled orthogonal beams;

    机译：差分内部共振;双倍敏感性扩增;终极感应;倍频;磁耦合正交梁;

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