NASA NTRS · 19830000461
Off-Resonance Acoustic Levitation Without Rotation
Abstract
Orthogonal acoustic-levitation modes excited at slightly different frequencies to control rotation. Rotation of object in square cross-section acoustic-levitation chamber stopped by detuning two orthogonal (x and y) excitation drivers in plane of square cross section. Detuning done using fundamental degenerate modes or odd harmonic modes.
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Barmatz, M. B., Allen, J. L.. 1984-04-01. Off-Resonance Acoustic Levitation Without Rotation. https://ntrs.nasa.gov/citations/19830000461
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