发明名称 |
Acoustic suspension system |
摘要 |
An acoustic levitation system is described, which can utilize a single acoustic source (12) and a small reflector (14) to stably levitate a small object (16) while the object is processed as by coating or heating it. The system includes a concave acoustic source (12) which has locations on opposite sides of its axis that vibrate towards and away from a focal point (36, FIG. 2) to generate a converging acoustic field. A small reflector (14) is located near the focal point, and preferably slightly beyond it, to create an intense acoustic field that stably supports a small object near the reflector. The reflector can be located about one-half wavelength (L, FIG. 3) from the focal point and can be concavely curved to a radius of curvature (L) of about one-half the wavelength, to stably support an object one-quarter wavelength (N) from the reflector.
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申请公布号 |
US4402221(A) |
申请公布日期 |
1983.09.06 |
申请号 |
US19810272837 |
申请日期 |
1981.06.12 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
LEE, MARK C.;WANG, TAYLOR G. |
分类号 |
F16C32/00;G10K11/20;G10K11/32;G10K15/00;(IPC1-7):F16C32/00 |
主分类号 |
F16C32/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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