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本文介绍对直径大于100mm 的主螺栓及主螺母进行涡流探测专用探头的结构、原理及性能测试。该探头的灵敏度及信噪比均达到法国 ED F的规定。
This paper introduces the structure, principle and performance testing of the special probe for eddy current detection of the main bolt and the main nut with the diameter larger than 100mm. The sensitivity and signal to noise ratio of the probe meet the requirements of the French ED F.