摘要
实现电子器件节能、快速动态热管理需要一种热阻小、响应速度快的低介入式热流传感器,为此在详细阐述一种新型低介入式热流传感器工作原理的基础上,针对其响应特性研究需求,搭建用于其稳态及动态特性测试的试验系统,并以此为平台完成低介入式热流传感器的输入—输出、温差迟滞等稳态特性测试,以及在热源阶跃功率下的动态响应特性研究,以HFS-4标准热流传感器为基准,进行低介入式热流传感器的误差分析试验。结果表明,该低介入式热流传感器线性度良好、迟滞误差较小且具有良好的动态测量性能,适用于电子器件动态热管理系统导热热流的介入式测量。
The implementation of energy-saving and fast dynamic thermal management（DTM） for electronic devices requires a low-interposition heat flux sensor（LI-HFS） with low thermal resistance and fast response ability.This paper illustrates the detailed operation principle of a new LI-HFS.Aiming at the response characteristics testing requirement of the LI-HFS,a testing system is built on the basis of static heat flow principle,and as a platform for LI-HFS sample test,the testing system is utilized to carry out testing research on steady state characteristics,such as input-output characteristic and temperature difference hysteresis characteristic,as well as dynamic characteristics under heat source step-power.Finally,taking HFS-4 heat flux sensor as reference standard,dynamic contrast test and error analysis on LI-HFS is performed.The results show that the LI-HFS,with good linearity,small hysteresis error and good dynamic measurement performance,is suitable for the interposition measurement of thermal conduction heat flow in DTM system for electronic devices.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2011年第12期106-112,共7页
Journal of Mechanical Engineering
基金
国家自然科学基金(50506003)
航空科学基金(2008ZC51028)资助项目
关键词
热流传感器
动态热管理
响应特性
导热
Heat flux sensor Dynamic thermal management Response characteristics Thermal conduction
