摘要
提出了一种基于ARM的电磁流量计转换器的设计方案,详细说明了模拟信号处理放大电路[1]、励磁模块和智能处理单元的设计,采用模块化软件设计方法,实现多种功能。采用标准表比较法对样机进行了标定试验,结果表明在0.4 m/s以上的流速只需单直线线性校正,精度即可达1%。
A simple and convenient design scheme of electromagnetic flowmeter converter based on ARM was introduced, and the modules include high-impedance analog signal amplifying and processing circuit, ARM microprocessor system, exciting, output, communication and display. The actual fluid experiment shows that when the velocity of flow is higher than 0.4 m/s and linearity correction is used, the precision is 1%.
出处
《机电工程》
CAS
2006年第3期23-25,共3页
Journal of Mechanical & Electrical Engineering
关键词
电磁流量计
精密测量
ARM
electromagnetic flowmeter
technology of precision measurement
ARM
