Parameter Optimization of ACFM Free Rotary Probe Based on NSGA-Ⅱ Algorithm
Alternating current field measurement(ACFM)is a new nondestructive testing method,in which the probe design is related to the detection efficiency and the difficulty of signal processing.Based on this kind of problem,the design of free rota-ting single probe was proposed.The COMSOL Multiphysics software was used to simulate different electromagnetic parameters of the probe,and the applicable probe parameters were obtained.In addition,according to the rotation simulation analysis,free rota-tion detection is feasible and By magnetic field signal has more detection advantages.At the same time,based on the restriction of rotation speed,parallel detection speed,sensor relative position and detection range,NSGA-Ⅱ(non-dominated sorting genetic al-gorithm Ⅱ)algorithm was used to optimize pareto,and then each parameter was determined,which verifies the efficiency of the rotary probe.Based on the optimized parameters,the signal processing model of free rotation detection was proposed.Finally,the method to build the system of rotation detection was proposed.
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