Ultrasonic Propeller with Electrically Controllable Propulsion Direction
Ultrasonic Propeller with Electrically Controllable Propulsion Direction
复制标题
具有电控推进方向的超声波螺旋桨
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Eun SokKim
中科院分区：
文献类型：
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作者：
Lurui Zhao;Eun SokKim
介绍了一种新型的电控推进方向超声波推进器。螺旋桨建立在1.02毫米厚的镀镍锆钛酸铅(PZT)基板上，由18个单独可拆卸的菲涅尔透镜组成，这些透镜由位于正面镍电极顶部的对二甲苯空气腔反射器组成。增加了背面空气反射器，以防止来自背面的任何推力，这可能会抵消来自正面的推力。一个重4.9克的装配式螺旋桨的测量结果是：(1)在80Vpp驱动下，所有扇区在水中的最大垂直推力为13.8mN；(2)在80Vpp下，单个扇区的最大横向推力为2.1mN。
This paper introduces a novel ultrasonic propeller with electrically controllability over its propulsion direction. Built on a 1.02 mm thick nickel-coated lead zirconate titanate (PZT) substrate, the propeller consists of 18 sectors of individually accessible Fresnel lens that are composed of Parylene air-cavity-reflectors on top of the front-side nickel electrode. A backside air-reflector is added to prevent any propulsion from the backside that may cancel the propulsion from the front side. A fabricated propeller weighing 4.9 grams is measured to have (1) a maximum perpendicular thrust of 13.8mN in water when driven by 80Vpp applied to all the sectors and (2) a maximum lateral thrust of 2.1mN under 80Vpp applied to a single sector.