A Transducer for Micro Cryogenic Actuator using Novel Preload Mechanism without Bolt-clamping
| Autor: | Daisuke Yamaguchi, Takumi Nishida, Kairi Yagi, Shuichi Wakimoto, Takefumi Kanda |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
musculoskeletal neural and ocular physiology Acoustics digestive oral and skin physiology musculoskeletal system Physics::Classical Physics Piezoelectricity Finite element method Clamping Mechanism (engineering) Preload Transducer cardiovascular system Ultrasonic sensor Actuator circulatory and respiratory physiology |
| Zdroj: | 2021 IEEE International Ultrasonics Symposium (IUS). |
| DOI: | 10.1109/ius52206.2021.9593366 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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