The Method of Signal Analysis of Alternating Magnetic Flux Leakage Inspection for the Rectangular Flaw

Based on the analysis of each factor which affected the flaw detection by use of alternating magnetic flux leakage, the method of signal analysis based on the rectangular flaw was expounded. The flaws which section is trapeziform, circular, arc and other linear and non-linear were analyzed, and the flaw-recognition model for each kind of flaw was given.