【摘要】 介绍在役石油输送管道的漏磁及超声检测方法的检测原理及手段,同时介绍基于这两种检测原理的两种检测爬机的结构及原理,并简单阐述了其各自的优缺点。更多还原

【Abstract】 The principles of ultrasonic and magnetic-flux inspection methods for inservice oil pipelines and the structures of the pigs on the basis of the two methods are described. Their advantages and disadvantages are given at last.更多还原