Abstract This work presents an ingenious mechanism using dual frictional-drive (DFD) for surface acoustic wave (SAW) linear motor resulting in significantly compact and lightweight design. The device uses two synchronous Rayleigh waves propagating on two 128° rotated y-cut x-propagated lithium niobate (LiNbO3) piezoelectric stators facing each other and driving a cylindrical slider held tightly between the stators in translational motion. By reversing the direction of propagation of both the SAWs, the direction of motion of the slider can be reversed. The experimental results of the proposed SAW motor demonstrate the novel mechanism to form the device where the slider is attaining a steady state velocity of 1.28 m/s for a continuous wave excitation of frequency 13.5 MHz.

中文翻译：

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采用圆柱轴作为外部负载驱动器的双摩擦驱动SAW电机

摘要 这项工作提出了一种巧妙的机制，将双摩擦驱动 (DFD) 用于表面声波 (SAW) 线性电机，从而实现非常紧凑和轻巧的设计。该设备使用两个同步瑞利波在两个 128° 旋转 y 切割 x 传播铌酸锂 (LiNbO3) 压电定子上传播，这些压电定子彼此面对，并在平移运动中驱动紧密固定在定子之间的圆柱形滑块。通过反转两个 SAW 的传播方向，可以反转滑块的运动方向。所提出的 SAW 电机的实验结果证明了形成装置的新机制，其中滑块在频率为 13.5 MHz 的连续波激励下达到 1.28 m/s 的稳态速度。