| 摘要 |
PROBLEM TO BE SOLVED: To provide a noncontact filtering method and apparatus using a supersonic wave. SOLUTION: In the noncontact filtering method and apparatus using a supersonic wave, a supersonic wave vibrator and a reflector are placed in parallel in a channel filled with a liquid medium; the vibrator is driven by a specified electric signal to emit a supersonic wave, which is reflected by the reflector; and minute substances dispersed in the liquid medium are captured by nodes or antinodes of the sound pressure of a standing wave sound field formed in the channel. COPYRIGHT: (C)2004,JPO
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