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基于能陷理论的石英谐振式力传感器的研究

Study on the Quartz Resonator Force Sensor with Energy Trapping Theory

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【作者】 王晓红王劲松冯冠平董永贵朱惠忠

【Author】 Wang Xiaohong Wang Jingsong Feng Guanping Zhu Huizhong Dong Yonggui(Dept. of Precision Instrument. Tsinghua University)

【机构】 清华大学精密仪器与机械学系!北京100084

【摘要】 采用能陷理论对石英谐振式力传感器的谐振器进行了分析和设计,通过基于基频的传感器和基于三次谐波的传感器的性能分析,提出了采用三次谐波切角的AT切谐振器,并合理设计晶片及电极参数,可达到对非谐波及低次谐波的抑制作用;证明了基频传感器,尤其是三次谐波传感器工作于三次谐波比工作于基频时有更优性能。

【Abstract】 This paper analyses and designs the quartz resonators and sensors on the basis of energy trapping theory. By analyzing the features of the fundamental-overtone sensors and the third-overtone sensors, it’s presented that the inharmonic and low order harmonics can be damped if we apply the AT-cut resonators with cut angles for third-overtone and appropriately design the coefficients of quartz plates and electrodes. Both the theory and experiments approve that fundamental sensors, as well as third-overtone sensors which is more significant working at thir-dovertone sensors displays better performance than those working at fundamental-overtone.

  • 【文献出处】 传感技术学报 ,Journal of Transcluction Technology , 编辑部邮箱 ,1997年01期
  • 【分类号】TP212.1
  • 【被引频次】3
  • 【下载频次】167
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