公开(公告)号：US20100052479A1

公开(公告)日：2010-03-04

申请号：US12514764

申请日：2007-11-15

申请人： Rene Breeuwer ,  Anne-Jan Faber ,  Mathias Hendrikus Maria Rongen

发明人： Rene Breeuwer ,  Anne-Jan Faber ,  Mathias Hendrikus Maria Rongen

IPC分类号： B06B3/00 ,  B06B1/06

CPC分类号： B06B3/00

摘要： An ultrasonic transducer system is provided for monitoring or treating a liquid medium (5) within a processing vessel, (8) such as a melting tank or a vessel with an chemically aggressive liquid medium. The purpose of monitoring can be characterization of flow velocities, melt surface levels and inhomogeneities in the liquid medium. The ultrasonic transducer system comprises at least one electro-acoustical transducer element (1) and an acoustic waveguide (3,4). A first extremity of the acoustic waveguide is connected to the transducer element outside the processing vessel, while a second extremity of the acoustic waveguide extends inside the processing vessel. The acoustic waveguide comprises one or more cavities (4) which extend throughout the whole acoustic waveguide's length. The cavities may be closed (6) at the acoustic waveguide's second extremity. A surface acoustic wave is excited on the wall of the one or more cavities and transmitted to the second extremity, which is in contact with the liquid medium. From this second extremity the acoustic signal is transmitted into the medium. Thus, it is avoided to place the transducer into contact with the liquid medium and at the same time effects of external attachments to the waveguide is minimized.

摘要翻译： 提供超声波换能器系统，用于监测或处理处理容器内的液体介质（5），（8），例如具有化学腐蚀性液体介质的熔化罐或容器。 监测的目的可以表征液体介质中的流速，熔体表面水平和不均匀性。 超声换能器系统包括至少一个电声换能器元件（1）和声波导（3,4）。 声波导的第一末端连接到处理容器外部的换能器元件，而声波导的第二末端在处理容器内延伸。 声波导包括在整个声波导的长度上延伸的一个或多个空腔（4）。 空腔可以在声波导管的第二末端封闭（6）。 表面声波在一个或多个空腔的壁上被激发并且被传递到与液体介质接触的第二末端。 从该第二端起，声信号被传送到介质中。 因此，避免将传感器放置在与液体介质接触的同时，使外部附着到波导管的效果最小化。