Study on a micro electrostrictive or piezoelectric actuator for cryogenic environment

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420091
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Design engineering/Machine functional elements/Tribology
• Research Institution: Okayama University
• Principal Investigator: Kanda Takefumi 岡山大学, 自然科学研究科, 准教授 (30346449)
• Research Collaborator: YAMAGUCHI Daisuke ; KURODA Masataka ; TAKEDA Dai ; NOGUCHI Yuya ; NAKAZONO Masahiro ; YAMADA Taiki
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 圧電アクチュエータ / 電歪材料 / 極低温 / 超音波モータ / 超音波振動子 / マイクロアクチュエータ

Outline of Final Research Achievements

The purpose of this research is to realize a micro actuator which can be driven under a cryogenic and high intensity magnetic field. In this study, the target is the material, structure and modeling for the actuator. For the realization of the actuator which has not a temperature dependency for the driving, a bolt-clamped Lngevin type transducer has been designed and evaluated. Using a finite element method, the temperature dependency has been evaluated about the transducer. Non-linear parameters about material properties were used for the simulation. As a result, the transducer which has not a temperature dependency for pre-load setting has been obtained by the simulation. The fabricated transducer under the design has been evaluated and used for the driving of the actuator. The transducer has successfully driven the actuator without the temperature dependency for the setting.

Free Research Field

センサ・アクチュエータ・マイクロシステム