海底管道内外腐蚀的在线检测技术

摘要

目前，主要是把智能检测器放到管内，在输送介质 的推动下，完成海底管道内、外腐蚀的在线检测，智能检测器的原理主要基于漏磁技术、超 声波技术和涡流技术。本文介绍了以上三种检测技术的原理、检测器的结构、适应的介质以 及优缺点。%At present,on-line testing method for underwater pipeline corrosion on both side of pipe wall is that a intelligent testing pig was put into the pipeline and pushed by fluid medium. The intelligent testing pig mainly based on the principle of magnetic leakage, ultrasonic & eddy. The paper introduced the principle, structure, advantages & defects for the 3 types testing technology.