On-line Multi-frequency Eddy Current Detion of Condenser Brass Pipe

For the leakage often occured on condenser brass pipe of Hanchuan Power Plant,using differential inner insert detecting coil the on line multi frequency eddy current check technology effectively restrains interferance source signal from support board,etc,improves measuring sensitivity and the measuring result gets more reliable.At the same time,it has demonstrated the accuracy of eddy current detection throughdissection test.