A Transducer for Micro Cryogenic Actuator using Novel Preload Mechanism without Bolt-clamping
A Transducer for Micro Cryogenic Actuator using Novel Preload Mechanism without Bolt-clamping
复制标题
采用新型无螺栓夹紧预紧机构的微型低温执行器传感器
DOI：
10.1109/ius52206.2021.9593366
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Wakimoto Shuichi
中科院分区：
文献类型：
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作者：
Kanda Takefumi;Yagi Kairi;Nishida Takumi;Yamaguchi Daisuke;Wakimoto Shuichi
在本研究中，提出一种应用于微型低温驱动器的换能器，其采用一种新型的预紧机构，无需螺栓夹紧。本研究的目的是实现一种结构简单的超声波换能器，在低温条件下施加预紧力，以实现微致动器换能器的小型化。当温度降低时，通过热膨胀系数的差异向压电元件施加预载荷。有限元仿真结果表明，在低温条件下，预紧力的施加是有效的。我们已经制造和评估了所提出的类型的换能器。实验结果表明，我们成功地施加预紧力的传感器在低温条件下的建议结构。
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.