新型三电炉结构平板式导热系数测定仪的设计  

Design of a new type three electric stoves structure flat-plate thermal conductivity detector

作　　者：刘芬[1] 刘兵[2] 

机构地区：[1]天津机电职业技术学院,天津300131 [2]北京时代集团,北京100085

出　　处：《机电工程》2010年第10期58-61,共4页Journal of Mechanical & Electrical Engineering

摘　　要：为实现导热系数的快速测定,基于一维无限大稳态导热原理,研制了一种新型三电炉结构平板式导热系数测定仪。它以MSP430F147单片机为测量控制核心,设计了相应的接口电路。相对于同类产品,在减少体积、减少测试过程中试件数量及利用PID温度控制等方面进行了良好的设计。实验结果表明,该仪器具有测试速度快、误差小、量程宽和造价低等特点。To achieve rapid measurement of thermal conductivity coefficient,a new type thermal conductivity detector with three electric stoves structure was developed based on the steady thermal conductivity theory of 1-D.The microcontroller MSP430F147 was used as foundation of measurement and control.The corresponding interface circuit was designed.Compared with similar products,it was done that the good design in reducing the size and the number of the specimen during testing and the use of PID temperature control.The experiment results show that the instrument has the advantage of rapid test,small error,wide rang and low cost and so on.

关 键 词：导热系数 MSP430单片机 PID 

分 类 号：TH811[机械工程—仪器科学与技术] TK39[机械工程—精密仪器及机械]