用PCI2006数据采集卡设计消弧线圈控制系统的数据采集模块,研究它在控制系统中的作用。首先介绍PCI2006采集卡的基本功能,然后设计了一种链表式的数据存储方法。最后,根据注入法检测对地电容电流的原理,搭建了硬件平台,并在VC平台上完成了程序开发。试验结果表明,系统测得的对地电容电流与现场用两点法测得值相近。 With PCI2006 data acquisition card design arc suppression coil control system data acquisition module to study its role in the control system. First introduce the basic functions of PCI2006 acquisition card, and then designed a chain of data storage methods. Finally, according to the principle of detecting the ground current to the ground by the injection method, a hardware platform is set up and the program development is completed on the VC platform. The test results show that the measured capacitance to current of the system is close to the value measured by two-point method in the field.