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MHz-Order Surface Acoustic Wave Thruster for Underwater Silent Propulsion
2020
Micromachines
High frequency (MHz-order) surface acoustic waves (SAW) are able to generate intense fluid flow from the attenuation of acoustic radiation in viscous fluids as acoustic streaming. Though such flows are known to produce a force upon the fluid and an equivalent and opposing force upon the object producing the acoustic radiation, there is no convenient method for measuring this force. We describe a new method to accomplish this aim, noting the potential of these devices in providing essentially
doi:10.3390/mi11040419
pmid:32316135
fatcat:lgpycwx7ovatlnp5qwsvxpe65i