【摘要】 在某些场合,需要精确记录操作者按下键盘上某指定键的时刻。本文分析了计算机记录击键时刻的误差原因,阐述了减小误差的软件——“击键时刻获取单元”实现的原理和方法,并介绍了应用此单元开发的人机交互性能测试程序。实验结果表明:采用此方法,记录精度可提高到毫秒级。更多还原

【Abstract】 In some cases,it is necessary to precisely measure “hit__key time”,the time when thespecified key on a keyboard is hit.In this paper, the error in measuring this time isanalyzed,and the principle and method for reducing the error is developed and pro-grammed into a subroutine,called “hit__key__time measuring unit”.This unit is used in aHUMAN-PERFORMANCE-TEST software package.The test results show that the ac-curacy of the time measurement reaches lms.更多还原