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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Flextensional ultrasonic piezoelectric micro-motor
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Flextensional ultrasonic piezoelectric micro-motor

机译：弯曲超声波压电微电机

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This paper presents the experimental design, construction, and operational characteristics of a new type of standing wave piezoelectric ultrasonic micro-motor. The motor uses a composite stator, consisting of a metallic flextensional mode converter, or "cymbal," bonded to a 2-mm-square piezoelectric plate. The cymbal converts contour-mode vibrations of the plate into oscillations in the cymbal, perpendicular to the stator plane. These are further converted into rotational movement in a rotor pressed against the cymbal by means of an elastic-fin friction drive to produce the required rotary actuation. The motor operates on a single-phase electrical supply, and direct control of the output speed and torque can be achieved by adjusting the amplitude and frequency of the supply voltage. Noncontact optical techniques were used to assess the performance of the developed micro-motor. The operational characteristics were developed from the acceleration and deceleration characteristics. No-load output speed (11 rev s-1) and stall torque (27 nNm) were derived using high-speed imaging and image analysis. Maximum efficiency was 0.6%
机译：本文介绍了一种新型驻波压电超声微电机的实验设计，构造和工作特性。电动机使用复合定子，该复合定子由金属挠性模式转换器或“ cy”组成，并结合到2平方毫米的压电板上。将板的轮廓模式振动转换成the中的振动，垂直于定子平面。这些通过弹性翅片摩擦驱动器进一步转换为压在c上的转子中的旋转运动，以产生所需的旋转致动。电动机在单相电源上运行，并且可以通过调节电源电压的幅度和频率来直接控制输出速度和转矩。非接触式光学技术用于评估已开发的微型电机的性能。运行特性是根据加速和减速特性得出的。空载输出速度（11 rev s-1）和失速扭矩（27 nNm）使用高速成像和图像分析得出。最高效率为0.6％

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