标题：
Rotary Type Standing Wave Piezoelectric Actuator for Aperture
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所属单位：
航空学院
发表刊物：
Zhendong Ceshi Yu Zhenduan
摘要：
In order to control and regulate light beam by driving aperture, A new rotary type standing wave piezoelectric actuator is proposed. In the existing PZT actuators with stable performance, always works in composited models of a single PZT oscillator, which a high requirement for manufacturing accuracy is put forward to. The performance and efficiency of the actuators would fall when the coupling effect of the vibration modes deteriorated by the oscillator size change after a long time friction and wear. Aimed to solving the problem and the character of aperture, this piezoelectric actuator is proposed. By using the same model of the same two rod-shaped PZT oscillator, rotary motion of aperture is driven by friction. Prototype machine is designed and manufactured, experimental study is carried out. Under the circumstance of fixing the pre-load pressure at 8N, and adjusting the driving voltage from 200 Vp-pto 400 Vp-p, the rotational speed shows a linear relationship with the driving voltage. The maximum clockwise speed is 75.36 rad/min and the maximum anticlockwise speed is 62.8 rad/min. The resolution of the modal-independent USM is up to 0.34 mrad at the applied voltage of 400 Vp-p. The piezoelectric actuator fulfills the function of driving aperture, characterized by simpler structure, fast response, smooth operation and high precision. © 2018, Editorial Department of JVMD. All right reserved.
ISSN号：
1004-6801
是否译文：
否
发表时间：
2018-02-01
合写作者：
刘坚,陈迪,王亮
通讯作者：
刘坚,金家楣
发表时间：
2018-02-01
学位：工学博士学位
职称：教授
所在单位：航空学院