【摘要】 设计基于USB接口的流速测量系统。硬件上使用USB接口芯片实现采集设备与计算机的实时通讯,提供简洁易用的操作接口;软件方面,在VisualBasic6.0开发环境下,运用多线程技术解决实时数据采集和图形显示等问题。经测试和实际运行表明,系统已达到流速测量预定的技术指标,具有良好的实时性和可靠性。更多还原

【Abstract】 The paper describes a flow velocity measurement system based on USB interface. The USB interface chip works for the real-time communication between the computer and data acquisition equipment. Application software is developed in the Visual Basic 6.0 and multi-thread technology is applied to meet the requirements of real-time dada acquisition,real time procession and image display. The practice application shows, the system reaches all the technical indices of flow velocity measurement, and assures good real-time operation and high reliability performance.更多还原