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High precision temperature measurement and control system of platinum resistance based on single chip computer
Author(s): 
Pages: 51-54
Year: Issue:  4
Journal: ELECTRONIC MEASUREMENT TECHNOLOGY

Keyword:  铂电阻单片机测控系统;
Abstract: 简要阐述了用单片机实现由Pt100进行温度测量温度测控系统的方法,该方法在硬件方面采用由恒流源对Pt100供电、12位精度A/D电压测量的方法,克服了传感器引线电阻带来的测量误差,显著提高了温度测量精度.并配有液晶显示、功能键盘、报警输出、控制输出电路,该系统已经在某化学反应釜温度控制中使用,运行状态表明:该系统参数设定方便,工作稳定,测量、控制精度高.
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