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A metal strip driven by an ultrasonic transducer to rotate a cluster of small particles.
A series of photographs showing the change in the size of a cluster of shrimp eggs in rotation. The driving frequency and voltage are and , respectively.
Dependence of the revolution speed and steady diameter of rotating particle cluster on the operating frequency at an operating voltage of .
Sound pressure distribution on the surface of the metal strip at an operating frequency of and operating voltage of . (a) Sound pressure around the point (, 0). (b) A three-dimensional 3D view of the sound pressure distribution around the point (, 0). The sensitivity of the hydrophone is . At the operating condition, the particle cluster rotates in the clockwise direction.
A 3D view of sound pressure distribution around point (, 0) on the surface of the metal strip at an operating frequency of and operating voltage of . At the operating condition, the particle cluster rotates in the counterclockwise direction.
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