公开(公告)号：US5544074A

公开(公告)日：1996-08-06

申请号：US378935

申请日：1995-01-26

申请人： Takehiko Suzuki ,  Shozo Taniguchi ,  Kohji Kanemaru ,  Yoshiyuki Sato ,  Akihiko Enamito

发明人： Takehiko Suzuki ,  Shozo Taniguchi ,  Kohji Kanemaru ,  Yoshiyuki Sato ,  Akihiko Enamito

IPC分类号： G01M3/00 ,  G01M3/24 ,  G01F1/66

CPC分类号： G01M3/005 ,  G01M3/243

摘要： A device for detecting the position of a physical defect on a buried pipe includes a leak-of-fluid signal detector, a number of vibration signal detectors, and a device body and can detect the position of a site of a leak, into the ground, of a fluid running through a fluid pipe buried beneath the ground surface. The device body calculates vibration amplitudes and speeds via associated vibration signal detectors with the use of the outputs of the respective vibration signal detectors, calculates cross-correlation functions of the vibration amplitudes and speeds with the use of the vibration amplitudes and speeds and the output of the leak-of-fluid signal detector, calculates the amplitude intensity for each cross-correlation function, and generates resultant vector data representing the position of the leak-of-fluid site with the use of the vibration intensity.

摘要翻译： 用于检测埋管的物理缺陷的位置的装置包括泄漏流体信号检测器，多个振动信号检测器和装置主体，并且可以将泄漏部位的位置检测到地面 流过穿过地下表面的流体管的流体。 装置主体利用相应的振动信号检测器的输出，通过相关联的振动信号检测器来计算振幅和速度，利用振动幅度和速度以及振动幅度和速度的输出来计算振幅和速度的互相关函数 流量泄漏信号检测器计算每个互相关函数的振幅强度，并使用振动强度产生表示流体泄漏点位置的合成矢量数据。