【摘要】 本文提出了一种可藉精确测定电感线圈接近待测零件后的阻抗变值,来判定工件有无缺陷的无损测试技术.并着重介绍了可精确测定电感线圈阻抗变值的电路分析计算基础.若改用100kHz以上的激励电源后,这一技术,凭藉趋肤效应,不仅可以用于物体内在缺陷检测,而且还可以用于物体形状的检测.更多还原

【Abstract】 The non-destroy inspection technique for inspecting the part defects by measur-ing precisely the inductance change of the coil is presented in this paper. The calculation ofthe coil inductance change is analyzed in detail. By changing the frequencies, this kind oftechnique is not only used for inspect the defects in parts, but also used for inspect the fig-ure between parts.更多还原