中文摘要：

针对圆纬机选针器驱动电路的可靠性检测难的问题，提出了一种基于电压信号反馈机制的圆纬机选针器驱动电路检测系统。检测系统由PC上位机、实时系统、外部信息采集电路组成。PC上位机设定相关工艺参数，结合专家库系统对实时系统反馈的测试结果的进行后续处理和显示；实时系统采用ARM微控制处理器的嵌入式检测系统实现，负责信号的发生、检测与通讯。根据实际纺织工艺设计编制了可靠性检测软件程序。实验证明检测系统在可靠性方面达到了预期效果，检测信息的精确定位能力满足设计要求。

英文摘要：

In allusion to the problem of difficulty in detecting the reliability of driving circuit of needle selector of circular weft knitting machine, this paper put forwards a detection system for driving circuit of needle selector of circular weft knitting machine based on voltage signal feedback mechanism. The detec- tion system was constituted of PC host computer, real-time system and external signal acquisition circuits. Paper describes functional block diagram, hardware circuit principle and software design process of the de tection system. The experiment proves that the detection system realizes the expected effect in reliability and accurate positioning ability of detection information meets the design requirements.