摘要
以复杂环境下超声液位测量系统为背景,论述了该系统中高速数据采集卡的功能和结构,并详细介绍了该高速数据采集卡各单元部分的设计方法。以高速间隙式采样获取超声信号,使用内存映射技术读取和处理超声信号。
In this paper, it discuss the function and configuration of High Speed Data Acquisition Card, with the background of ultrasonic liquid level measurement system under complex circumstance, and give a particular introduction to the designing method of the cells of High Speed Data Acquisition Card. It used high speed and intermittently sample to acquire ultrasonic signal, and memory mapping technique to read and process digital ultrasonic signal.
出处
《微计算机信息》
2004年第12期42-43,共2页
Control & Automation
关键词
超声波液位测量技术
高速数据采集
间隙式采样
内存映射
Ultrasonic Liquid Level Measuring Technique
High Speed Data Acquisition
Intermittently Sample
Memory Mapping
