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专利名称：Non-destructive testing of pipes发明人：OSAMA HUNAIDI,MARC BRACKEN,ALEX
WANG
申请号：AU2006261535申请日：20060619公开号：AU2006261535A1公开日：20061228
摘要：To perform a non-destructive condition assessment of a pipe carrying a fluid, anactual value representative of the propagation velocity of an acoustic disturbancepropagating between two longitudinally separated points on the pipe is determined. Acorresponding predicted value for the propagation velocity is computed as a function ofat least one wall thickness parameter of the pipe by using a theoretical model for thepropagation of acoustic waves in the pipe that assumes said pipe has a finite wallthickness with a predetermined circumferential thickness profile. The wall thicknessparameter is then computed by matching the actual value with the predicted value, forexample, by substituting the actual value in a formula predicting the theoretical value.
申请人：NATIONAL RESEARCH COUNCIL OF CANADA
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