发明名称 |
DEVICE FOR GENERATING ULTRASONIC WAVES |
摘要 |
This device comprises at least one piezoelectric or magnetostrictive ultrasonic converter (11), a main acoustic waveguide chamber (12), an intermediate acoustic waveguide chamber (13) and a tubular waveguide (14) associated with said chambers. Said waveguide (14) comprises an open or closed tubular body of circular or polygonal cross-section constituting a waveguide. The tube is closed at its upstream end by a base defining a first mechanical filter (15) and, at its downstream end, has an annular thickening (16) lying outside the tube and defining a second mechanical filter (17). The interior of the tube defines an acoustic chamber (18). The two filters (15, 17) are used to filter the vibrations of at least one range of given frequencies.
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申请公布号 |
WO9727005(A1) |
申请公布日期 |
1997.07.31 |
申请号 |
WO1997CH00018 |
申请日期 |
1997.01.22 |
申请人 |
ASTIR S.A.;PADOY, JEAN-CLAUDE;PROKIC, MIODRAG |
发明人 |
PADOY, JEAN-CLAUDE;PROKIC, MIODRAG |
分类号 |
B06B3/00;G10K11/04;(IPC1-7):B06B3/00 |
主分类号 |
B06B3/00 |
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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