摘要
介绍基于ARM7TDMI设计的一种嵌入式数据采集分析仪。ARM7性能比单片机更强大,使在嵌入式系统上实现虚拟仪器成为可能。仪器实现了单通道最高200kSps的数据采样速率和同步波形示踪功能;两种新颖的采样触发方式,适合旋转机械振动信号采集。仪器运行!C OS II操作系统,通过USB和电脑通讯,速度达到1Mbyte s。
A data acquisition and analysis instrument using ARM7TDMI embedded architecture is introduced. Implementation of virtual instruments based on embedded system is made possible by ARM7, which is much more powerful than MCU. Single channel 200kSps sampiing, synchronous waveform display and two novel triggering modes catering to rotary machine vibration analysis are realized herein. Implementing μC/OS Ⅱas the operating system, the speed of connection with PC can reach as high as 1 Mbyteps via USB.
出处
《电测与仪表》
北大核心
2006年第11期38-42,共5页
Electrical Measurement & Instrumentation
关键词
ARM
嵌入式系统
数据采集
虚拟仪器
ARM
embedded system
data acquisition
virtual instruments
