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本文针对按通常工艺制作的钨丝探伤用探头存在填充系数低、易被磨损、寿命短、可靠性差等缺点，对常规探头的结构型式及骨架材料、绕制工艺和接线方式进行改革，自行研制成功一种新颖结构、高灵敏、长寿命丝材穿过式涡流探头。配合100kHzyy11涡流仪，在探头填充系数η频率比f／fg分别为0．52、σ的试验条件下，可发现φ1．3mm钨丝超过直径10％深度的非连续性裂纹。
In this paper, the conventional tungsten rod inspection probe made by the conventional process has the disadvantages of low filling coefficient, easy to wear, short service life, poor reliability and so on. The conventional probe structure structure, the skeleton material, the winding process and the connection mode are developed by ourselves Success A novel structure, high sensitivity, long life wire through the eddy current probe. With the 100kHzyy11 eddy current meter, it can be found that the φ1.3mm tungsten wire exceeds the 10% diameter of the non-continuous crack under the test conditions that the probe filling factor η frequency ratio f / fg is 0.52, σ respectively.