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针对无损探伤难以实现定量检测的问题，探讨模糊模式识别定量分析裂纹漏磁信号的原理和方法，通过在标准试件上大量实验及在具有自然裂纹的工件上测试，取得了满意的效果。
In order to solve the problem of quantitative detection difficult to achieve by nondestructive testing, the principle and method of quantitative analysis of cracked magnetic flux leakage signal by fuzzy pattern recognition are discussed. The satisfactory results are obtained through a large number of experiments on standard test pieces and testing on the work pieces with natural cracks.