基于Windows的4种延时方法精度对比研究  

Delay Precision Contrast Research on Four Delay Methods Based on Windows

作　　者：陈涛[1,2] 秋实[1] 沈继阳[1] 陈思林[1] 杨丹[1] 

机构地区：[1]西北核技术研究所,陕西西安710024 [2]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《测控技术》2014年第10期120-122,125,共4页Measurement & Control Technology

摘　　要：介绍了Windows环境下的4种延时方法。针对这4种方法设计了延时精度测量系统,进行了延时精度实验。结果表明,4种方法的延时精度分别为16 ms、13 ms、12 ms和0.01 ms。通过对比研究,得出4种方法的延时精度变化规律,为设计具有延时功能的软件提供了一定的理论依据。最后采用其中的Tdelay()函数法实现了某实验设备软件的延时功能,应用于该设备的仿形运动系统。实践结果显示,延时精度达到了1 ms以内的延时要求,效果良好。Four methods of delay for Windows are introduced. A measurement experiment system of delay precision is designed for the four methods, and some time delay precision experiments are done. The experimental results show that the delay preeisions of the four methods are 16 ms, 13 ms, 12 ms and 0. 01 ms. The experimental results provide the theory evidence for the design of delay and control system. At last, the delay method of Tdaley（） function is applied to a profile modeling movement system in an experimental equipment. The application result indicates that delay precision is less than 1 ms, and application effect is well.

关 键 词：延时方法 延时精度 高精度性能计数器 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]