A Transducer for Micro Cryogenic Actuator using Novel Preload Mechanism without Bolt-clamping

Takefumi Kanda, Kairi Yagi, Takumi Nishida, Daisuke Yamaguchi, Shuichi Wakimoto

Research output: Contribution to journalConference articlepeer-review


In this study, a transducer for micro cryogenic actuator using novel preload mechanism without bolt-clamping is proposed. The aim of this research is to realize the ultrasonic transducer with a simple structure for applying preload under cryogenic condition to miniaturize the transducer for a micro actuator. As a temperature decreases, the preload is applied to the piezoelectric element by the difference of the thermal expansion coefficients. The finite element method simulation result shows that the preload is effectively applied under the cryogenic condition. We have fabricated and evaluated the proposed type of transducer. The experimental results show that we have successfully applied preload by the proposed structure of the transducer under the low temperature condition.

Original languageEnglish
JournalIEEE International Ultrasonics Symposium, IUS
Publication statusPublished - 2021
Event2021 IEEE International Ultrasonics Symposium, IUS 2021 - Virtual, Online, China
Duration: Sept 11 2011Sept 16 2011


  • cryogenic condition
  • piezoelectric actuator
  • preload mechanism
  • transducer
  • ultrasonic vibrator

ASJC Scopus subject areas

  • Acoustics and Ultrasonics


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