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1. 发明授权

US5493912A Ultrasonic probe suitable for acoustic coupling via a water channel 失效
标题翻译：超声波探头适用于通过水道进行声耦合
公开(公告)号：US5493912A
公开(公告)日：1996-02-27
申请号：US196262
申请日：1994-04-15
申请人： Werner Gunther , Ulrich Sauer
发明人： Werner Gunther , Ulrich Sauer
IPC分类号： G01N29/28
CPC分类号： G01N29/28
摘要： An ultrasonic probe suitable for acoustic-coupling via a water channel, includes a main element with a housing. Housed in watertight fashion in the housing is an ultrasonic oscillator, the oscillator being joined to a protective layer which is flush with the lower surface of the housing. The housing wall encloses a water channel which is connected at the input end to a hose connector and whose output end opens out in the lower surface next to the oscillator. The side wall of the housing immediately next to the lower surface has a physically interlocking coupling element for a nozzle with a matching physically interlocking coupling element to be fitted over the lower surface. The nozzle forms a truncated-conical channel which tapers towards its open end and which fits against the surface of the oscillator at the input end. The nozzle also has a blind-end bore, which forms an extension of the output end of the water channel, and a cross-channel between the blind-end bore and the channel in the nozzle. The nozzle is made of a material whose acoustic impedance is as close as possible to that of water.
摘要翻译： PCT No.PCT / DE92 / 00374 Sec。 371日期1994年04月4日 102（e）日期1994年4月4日PCT提交1992年5月7日PCT公布。出版物WO93 / 04362 日期1993年3月4日。适用于通过水道进行声耦合的超声波探头包括具有壳体的主要元件。在壳体中以水密方式设置超声波振荡器，振荡器被连接到与壳体的下表面齐平的保护层。外壳壁包围一个水通道，该通道在输入端连接到软管连接器，其输出端在振荡器旁边的下表面打开。紧邻下表面的壳体的侧壁具有用于喷嘴的物理互锁联接元件，具有匹配的物理互锁联接元件以配合在下表面上。喷嘴形成截锥形通道，该锥形通道朝向其开口端逐渐变细，并且在输入端处与振荡器的表面配合。喷嘴还具有盲端孔，其形成水通道的输出端的延伸部以及盲端孔和喷嘴中的通道之间的交叉通道。喷嘴由其阻抗尽可能接近水的材料制成。

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