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介绍一种新型涡流探头 ,此探头可在试件上感应出均匀的涡流 ,这种探头在原理上具有自比差动、无提离噪声和自归零等特性。实验结果表明该探头用于焊接区域的涡流探伤的发展前景看好
A new type of eddy current probe is introduced, which can induce a uniform eddy current on the test piece. The probe has the characteristics of self-ratio differential, no lift-off noise and self-zeroing in principle. The experimental results show that the probe has good prospects for the development of eddy current testing in the welding area