本文整体介绍了钢管漏磁检测系统 ,对关键硬件及外围电路的设计原理给予了说明 ,借助 Windows系统平台 ,用 VisualC+ + 面向对象编程语言 ,采用多线程和虚拟设备驱动技术编制了数据采集分析、状态显示、实时控制等多功能模块化软件 ,操作性强 ,系统现场自动化程度高、应用效果良好 ,为钢管高效、高质量的自动化生产奠定基础 This paper introduces the steel tube magnetic flux leakage testing system as a whole, and describes the design principles of the key hardware and peripheral circuits. With the help of Windows system platform, using Visual C + + object-oriented programming language, the data acquisition and analysis are compiled by multi-thread and virtual device driver technology, Status display, real-time control and other multi-functional modular software, strong operability, the system a high degree of automation on the scene, the application of good results for the steel efficient, high-quality automated production basis