DCVG

In this paper, the DCVG/ CIPS detecter was compared with the foreign similar product, and the test results were analyzed in detail, which gets a better result.

本文还进行了DCVG/CIPS管线检测仪与国外同类检测仪器的应用性对比测试，并对测试结果进行的较详细的数据分析，取得了较好的测试效果。

This paper introduces the principle of the detection technique of DCVG, and by field experimentation verifies the accuracy of judgements of the size and corrosion condition of the coating defect point.

介绍了DCVG检测技术的工作原理，通过现场试验验证了其对埋地管道防腐层破损点面积大小和腐蚀情况判定的准确性。

Study on New Technology for Testing the Deficiency of Protection Coating of Underground Pipelines& Combined CIPS/ DCVG Testing Technology

地下管道防护层缺陷检测新技术研究&密间隔电位/直流电压梯度联合检测技术