【摘要】 C++Builder中的标准控件TTimer以及由英国CairnResearch有限公司出品的自由控件TCairnTimer和WindowsAPI中的计时函数都是用来对计算机计时器进行操作和控制的。虽然在某些环境中三者可以相互替换,但是它们的计时精度不同。本文通过实验对三种计时方法在计时精度方面进行比较,并在生物信号采集处理系统软件部分的开发中分别择优加以应用,提高了计算机资源的利用率。更多还原

【Abstract】 The standard ADO componentTTimer in C++ Builder,the free ADO componentTCairnTimer of Cairn Research Company Ltd.in London and the functions of Windows API are all used to operate and control the calculagraph of computer.All of them can be substituted for each other on some conditions,but their time precisions are distinct.In this paper,three methods are validated on time precision by a test,and suitably applyied in software exploitation of the Physiological Recording System.The using rate of computer resource is improved by this means.更多还原