不良导体导热系数智能测量系统的研制  

A development of intelligent thermal conductivity measuring system of poor conductor

作　　者：张康 韦力铖 黄家豪 路子博 张萍 ZHANG Kang;WEI Li-cheng;HUANG Jia-hao;LU Zi-bo;ZHANG Ping(Northwest A&F University,Xianyang,Shaanxi 712100,China)

机构地区：[1]西北农林科技大学理学院,陕西咸阳712100

出　　处：《大学物理》2022年第6期74-77,共4页College Physics

基　　金：陕西省自然科学基础研究计划项目(2021JQ-148);西北农林科技大学博士科研启动基金(2452020022)资助。

摘　　要：针对现有“稳态法测量不良导体导热系数”教学实验装置的不足,结合单片机控制系统和python语言编程对现有教学实验装置进行了智能化改进.利用STC15F2K60S2单片机作为主控芯片,同时利用DS18B20温度传感器、固态继电器、NRF24L01无线收发模块等组成控制系统,并编写上位机软件.改进后的实验装置能够自动控制加热盘温度、自动采集散热盘温度、快速且准确地计算不良导体导热系数,提高了测量精度和效率.In view of the shortcomings of the existing teaching experimental device of measuring the thermal conductivity of poor conductor by steady-state method,the existing teaching experimental device was intelligently improved by combining the single-chip microcomputer control system with python language programming.The STC15F2K60S2 single-chip microcomputer was used as the main control chip.DS18B20 temperature sensor,solid-state relay and NRF24L01 wireless transceiver module were used to form the control system.NRF24L01 wireless transceiver module was used to form the control system,and the upper computer software was written.The improved experimental device could automatically control the temperature of heating plate,automatically collect the temperature of heat dissipation plate,quickly and accurately calculate the thermal conductivity of poor conductors.The device improved the measurement accuracy and efficiency.

关 键 词：导热系数 稳态法 单片机 数据拟合 

分 类 号：O4-34[理学—物理]