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Acoustic rotation control
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Croonquist, A. P. Elleman, D. D. |
| Copyright Year | 1983 |
| Description | A system is described for acoustically controlled rotation of a levitated object, which avoids deformation of a levitated liquid object. Acoustic waves of the same wavelength are directed along perpendicular directions across the object, and with the relative phases of the acoustic waves repeatedly switched so that one wave alternately leads and lags the other by 90 deg. The amount of torque for rotating the object, and the direction of rotation, are controlled by controlling the proportion of time one wave leads the other and selecting which wave leads the other most of the time. |
| File Size | 489366 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840015165 |
| Archival Resource Key | ark:/13960/t9p31qg8q |
| Language | English |
| Publisher Date | 1983-12-20 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Transducers Sound Waves Torque Microgravity Applications Wavelengths Amplitudes Deformation Acoustic Levitation Specifications Space Commercialization Rotation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
