单片微机高精度温度测控系统

Single chip microcomputer temperature measure and control system with high accuracy

阐述了在单片微机温度测控系统中为提高精度、降低成本采用ＶＦＣ和ＰＷＭ作为系统的Ａ／Ｄ和Ｄ／Ａ转换器件的原理及实现办法，同时论述了为解决非线性问题和使系统成为准连续系统而采取的措施．

his paper discussed the principle and realizing methods using YFC and PWM as transforming elements A/D,D/A of the system in single chip processer temperature measure and control to increase the precision and reduce the cost. The related measures to solve the non--linear problem and make the system become par--contious one is also discussed.