Application and Comparision of Timer in Real-time Data Acqusition System Based on VC~(++)

The software timer are used in the real-time data aqusition system.Combined with our measurement control system.The WM_TIMER and multimedia timer realized by visual C++ is used in the real-time data aqusition system.Two timers are compared in realized method,timing pricision and priority,etc.We conclude that the higer timing precision even 1ms is provided in the multitask system.