公开(公告)号：US20090308161A1

公开(公告)日：2009-12-17

申请号：US12298514

申请日：2007-04-25

申请人： Jostein Jacobsen ,  Ashild Bergh ,  Stale Vilming

发明人： Jostein Jacobsen ,  Ashild Bergh ,  Stale Vilming

IPC分类号： G01N29/12

CPC分类号： G01N29/036 ,  G01N29/11 ,  G01N29/12 ,  G01N29/348 ,  G01N29/4454 ,  G01N29/46 ,  G01N2291/0224 ,  G01N2291/0427 ,  G01N2291/2634

摘要： An acoustic method and apparatus detects or characterizes a medium in a structure which may be a container, such as a pipeline for transportation of oil, gas, or hydrocarbon condensate. A pulse of broadband acoustic energy is emitted towards the structure by a first transducer. A return signal is generating by a second transducer from acoustic energy returned from the structure in response to the emission of acoustic energy. A return signal spectrum representing acoustic spectral components of the acoustic energy returned from the structure is derived from the return signal, and the medium is detected or characterized by applying a return signal processing medium detection or characterization algorithm to the return signal spectrum.

摘要翻译： 声学方法和装置检测或表征可以是容器的结构中的介质，例如用于输送油，气体或烃冷凝物的管道。 宽带声能的脉冲通过第一换能器向结构发射。 响应于声能的发射，由结构返回的声能由第二换能器产生返回信号。 从返回信号导出表示从结构返回的声能的声频分量的返回信号频谱，并且通过对返回信号频谱应用返回信号处理介质检测或表征算法来检测或表征介质。