发明名称 |
Method and system for determining pipeline defects |
摘要 |
<p>In accordance with the teachings of the present invention, a method is provided for analyzing RFT data from a data file. The method includes parsing the data file into pipe lengths, calculating a phase profile for the data points within each pipe length, locating potential defects in the pipe length using the phase profiles, determining for each defect a total equivalent phase shift as a combination of a circumferential equivalent phase shift and a non-circumferential equivalent phase shift, and using the total equivalent phase shift to analyze the defect. <IMAGE></p> |
申请公布号 |
EP0990897(A2) |
申请公布日期 |
2000.04.05 |
申请号 |
EP19990307758 |
申请日期 |
1999.09.30 |
申请人 |
HYDROSCOPE CANADA INC. |
发明人 |
WINSLOW, JENS;RIDLEY, RODNEY K.;RAJAN, VARAGAR S. V.;YU, YUWU;STAPLES, LAWRENCE B. |
分类号 |
G01N27/90;(IPC1-7):G01N27/90 |
主分类号 |
G01N27/90 |
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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