摘要
本文介绍一种采用8031芯片的单片机四路温度测控仪,这种仪表具有智能化、通用性强和使用方便等优点。文中提出了一种提高8位A/D转换器分辨率的方案,并利用PN结的温度特性实现热电偶冷端温度补偿,采用参数自整定模糊控制算法解决大滞后对象的温度控制。仿真结果表明,这种控制算法具有较好的控制效果。
Presented in this paper is a microprocessor(8031)-based intelligent tem-
perature measure and control instrument with four channels.This instrument
has the advantages of intelligence,generality and convenience.The scheme
which can increase the resolution of 8-bit changer of A/D is put forward,
and the specific property of P-N junction is utilized for cold-junction com-
pensation.A new kind of controller named Parameter Self-adjusting Fuzzy-PI
Controller is used in the control system with time delay.Simulation results
show that this algorithm is suitable to the temperature control system.
关键词
温度
测控仪
智能
四路
单片机
temperature
resolution
algorithm/intelligence
fuzzy controller
