发明名称 |
Detection of corrosion fatigue cracks in membrane boiler tubes |
摘要 |
A method for detecting corrosion fatigue cracks in membraned boiler tubes in a membrane tube panel employs at least one EMAT coil generating ultrasonic SH shear waves at a predetermined beam angle. The method of the present invention provides better signal-to-noise ratios than conventional ultrasonic techniques as well as not requiring any couplant.
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申请公布号 |
US5526691(A) |
申请公布日期 |
1996.06.18 |
申请号 |
US19950511049 |
申请日期 |
1995.08.03 |
申请人 |
THE BABCOCK & WILCOX COMPANY |
发明人 |
LATIMER, PAUL J.;MACLAUCHLAN, DANIEL T. |
分类号 |
F22B37/02;G01N29/04;G01N29/24;(IPC1-7):G01N29/04 |
主分类号 |
F22B37/02 |
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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