发明名称 |
NON-DESTRUCTIVE MEASUREMENT OF PIPE WALL THICKNESS |
摘要 |
<p>The average wall thickness of a pipe carrying a fluid is determined by sensi ng disturbances in the pipe at two spaced locations, determining the propagatio n velocity of coupled propagation mode signals at low frequencies resulting from the disturbances, and calculating the average pipe wall thickness between the two locations from t he propagation velocity and known constants for the pipe and fluid.</p> |
申请公布号 |
CA2347567(A1) |
申请公布日期 |
2001.11.15 |
申请号 |
CA20012347567 |
申请日期 |
2001.05.14 |
申请人 |
NATIONAL RESEARCH COUNCIL CANADA |
发明人 |
HUNAIDI, OSAMA |
分类号 |
G01B17/02;G01N29/07;(IPC1-7):G01B7/06 |
主分类号 |
G01B17/02 |
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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