In this thesis,I take out oil pole as object to research the principium and the method which base on the DSP to detect the magnetic flux leakage on-line in the first place.

• 本文以抽油杆为对象，研究了基于DSP的抽油杆在线漏磁无损检测技术的原理和方法，并提出了总体的设计方案和解决方法。