关于埋地防腐层管道直流电位梯度(DCVG)测量与%IR计算的讨论

刘国

Discussion on DC Voltage Gradient (DCVG) Measurement and %IR Calculation of Buried Coating Pipeline

LIU Guo

图1 直流电位梯度法检测管道防腐层破损点的原理图

Fig.1 Schematic diagram of detection of pipeline coating defect by DCVG