摘要
本文提出了一种基于USB2.0的数据采集系统。该数据采集系统的设计完全基于USB2.0协议,可以实现8路差分或16路单端模拟信号连续采集,采样精度为14位,采集电路可软件触发、电平触发,并可通过主机设置采样时间和采样率,选择采样通道,开启关闭采集。通过测试表明,本文所开发的数据采集系统能够满足系统频谱分析的要求。
This paper introduces a data acquisition system based on the USB2.0 protocol. The system can be used with 8 route difference or 16 route single-ended analog signals and the sampling accuracy is 14 bits. The acquisition circuit can be software-triggered or electrical level-triggered. The data acquisition system developed in this paper is for spectra analysis in particular.
出处
《自动化技术与应用》
2009年第11期47-50,共4页
Techniques of Automation and Applications
