提高Zr－4管涡流检测信噪比及可靠性方法研究  

The Method Research on Improving Singnal-to-Noise Ratio and Reliability in Eddy Testing for Zr-4 Tubes

作　　者：魏惠元[1] 江立新[1] 陈百锁[1] 

机构地区：[1]宝鸡有色金属加工厂

出　　处：《稀有金属材料与工程》1994年第6期59-62,共4页Rare Metal Materials and Engineering

摘　　要：针对管材涡流探伤中存在的一些问题，研制出可匹配低激励电压ＥＴ－２０４型涡流仪的三点式探头，并采用阻抗平面显示技术选择最佳信噪比相位。实验结果表明，该方法具有远距离检测、高灵敏度、抗干扰的特点。To the problems in the tube eddy testing, some improved ways are given by using a three-point probe matching the eddy instrument model ET-204 with low field voltage, and selecting a phase having the optimum singnal-to-noise ratio with impedance plane technique.The testing results show that the method possesses a jamproof capability for distant testing with high sensitivity.

关 键 词：涡流检验 信噪比 锆-4管材 反应堆 包壳材料 

分 类 号：TL341[核科学技术—核技术及应用]