The on-line pipe flaw detector with magnetic leakage flux principle is introduced, providing details regarding the exciter circuit structure, magnetic sensors and signal processing.

• 介绍了基于漏磁探伤原理的钢管管缝在线检测装置,对装置的励磁磁路结构、磁敏感检测元件及其信号处理作了较详细的分析论述。