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Pt100铂热电阻在雨花茶精揉机温度控制中的应用
引用本文:刘同召,姬长英,朱亚明,王海青.Pt100铂热电阻在雨花茶精揉机温度控制中的应用[J].江西农业学报,2009,21(5).
作者姓名:刘同召  姬长英  朱亚明  王海青
作者单位:南京农业大学,工学院,江苏,南京,210031
摘    要:从铂热电阻非平衡电桥测温原理出发,分析了雨花茶精揉机揉锅温度测量与控制系统在温度信号采集过程中引入的非线性误差,提出了以Pt100铂热电阻和AT89S52单片机为核心的软件非线性补偿方案,给出了系统硬件结构图和软件设计流程图。实验结果表明该方案简便有效,能够提高温度控制系统性能。

关 键 词:Pt铂热电阻  雨花茶精揉机  单片机  温度控制

Application of Pt100 Platinum Thermistor in Temperature Control of Yuhua Tea Precise Rolling Machine
LIU Tong-zhao,JI Chang-ying,ZHU Ya-ming,WANG Hai-qing.Application of Pt100 Platinum Thermistor in Temperature Control of Yuhua Tea Precise Rolling Machine[J].Acta Agriculturae Jiangxi,2009,21(5).
Authors:LIU Tong-zhao  JI Chang-ying  ZHU Ya-ming  WANG Hai-qing
Institution:College of Engineering;Nanjing Agricultural University;Nanjing 210031;China
Abstract:In the processing of Yuhua tea precise rolling,the accurate temperature measurement of the rolling pot is a very important step.Based on the principle of temperature measurement of platinum thermistor with unbalanced voltmeter bridge,this paper analyzed the non-linear error which came from the processing of temperature measurement in whole system,put forward the software non-linear compensation method with the core of Pt100 platinum thermistor and AT89S52 single chip processor,and gave the designed hardware...
Keywords:Pt100 platinum thermistor  Yuhua tea precise rolling machine  Single chip processor  Temperature control  
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