采用磁敏传感器可以揭示钢制管道内壁的缺陷，传感器放置在被检管道的内部，由推进传感器的移动装登记录传感器在管道中的位置。分析了检测误差产生的因素，管壁磁化强度的不均匀性是引起附加误差的主要原因之一。为此，提出了所要求的磁化强度与被检管道壁厚的判定准则。磁敏? The use of magnetic sensors can reveal the defects of the steel pipe wall, the sensor placed inside the seized pipeline, by the propulsion sensor mounted mobile registration sensor position in the pipeline. The factors that cause the detection error are analyzed. The inhomogeneity of the magnetization of the tube wall is one of the main causes of the additional error. For this reason, the criteria for determining the required magnetization and the thickness of the pipe to be inspected are presented. Magnetic susceptibility?