用于动态热管理的低介入式热流传感器响应特性试验研究  

Experiment Research on Responsive Characteristic of Low-interposition Heat Flux Sensor for Dynamic Thermal Management

作　　者：刘东晓[1] 李运泽[2] 李明敏[2] 李淼[1] 李运华[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191 [2]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《机械工程学报》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

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.

关 键 词：热流传感器 动态热管理 响应特性 导热 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]