| 基于正反馈的多通道高精度温度检测系统 |
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| 引用本文： | 窦伟峰,闫卫平,唐吉仁. 基于正反馈的多通道高精度温度检测系统[J]. 传感器与微系统, 2011, 30(10) |
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| 作者姓名： | 窦伟峰 闫卫平 唐吉仁 |
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| 作者单位： | 大连理工大学电子科学与技术学院,辽宁大连,116024 |
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| 基金项目： | 国家自然科学基金资助项目(61074166) |
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| 摘 要： | 为了检测微热管的传热特性,采用Pt100温度传感器搭建了8路温度检测系统。该系统以MSP430单片机为下位机控制核心,利用集成的AD模块和UART模块完成A/D转换与通信等功能。上位机用VC++开发应用程序对多路温度信号进行数据拟合,将数据实时显示,并绘制8路温度曲线。通过加入正反馈电路,显著改善了输出线性度。系统测温范围为0～150℃,具有测温精度高,可靠性好,实时性强等优点。
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| 关 键 词： | 多通道测温 线性度优化 实时数据采集 |
Multi-channel high precision temperature detection system based on positive feedback |
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| DOU Wei-feng,YAN Wei-ping,TANG Ji-ren. Multi-channel high precision temperature detection system based on positive feedback[J]. Transducer and Microsystem Technology, 2011, 30(10) |
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| Authors: | DOU Wei-feng YAN Wei-ping TANG Ji-ren |
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| Affiliation: | DOU Wei-feng,YAN Wei-ping,TANG Ji-ren(School of Electronic Science and Technology,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | In order to detect heat-transferring characteristics of the micro heat pipe,an 8 channel temperature detection system is built using Pt100 temperature sensor.The integrated AD module and UART module of microcontroller MSP430 are used to complete A/D transform,communications and other functions.Fuctions of multi-channel temperature signal data fitting,data real-time display,and temperature curve drawing are implemented on upper PC with VC++.By joining positive feedback circuit,output linearity is improved.Te... |
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| Keywords: | multi-channel temperature measuring linearity optimization real-time data acquisition |
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