Dither-motor design with concurrent sensing and actuating piezoelectric materials (Ring laser gyroscope)

Shih-Ming Yang, J. S. Chui

研究成果: Article同行評審

14 引文 斯高帕斯(Scopus)


The authors present an analytical model to predict the model parameters of a dither-motor structure in a ring laser gyroscope in which the piezoelectric sensor and actuator are employed as driving mechanisms to avoid the problem of so-called lock-in effects. It is shown that the natural frequency of a dither motor is strongly influenced by: (1) the inertia and stiffness of piezoelectric elements and bonding layers, (2) the location of piezoelectric elements, and (3) the interaction between structural vibration and piezoelectric actuation. Conventionally. piezoelectric elements are used for sensor and actuator independently. A technique for utilizing each of the piezoelectric elements concurrently for dither rate sensing and dither motion actuation is also developed. Experimental results show that the system performance and reliability can be significantly increased by accurately predicting the fundamental structural frequency and by implementing the concurrent sensing/actuating technique.

頁(從 - 到)248-253
期刊Smart Materials and Structures
出版狀態Published - 1994 十二月 1

All Science Journal Classification (ASJC) codes

  • 訊號處理
  • 土木與結構工程
  • 原子與分子物理與光學
  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 電氣與電子工程


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