红外热成像技术在建筑外墙热工缺陷检测中的应用  

Application of infrared thermography technology in testing thermal defects of building envelope

作　　者：杨丽萍[1] 闫增峰[1] 孙立新[2] 张怡[1] 

机构地区：[1]西安建筑科技大学建筑学院,陕西西安710055 [2]中国建筑科学研究院建筑物理研究所,北京100044

出　　处：《新型建筑材料》2010年第6期53-57,共5页New Building Materials

基　　金："十一五"国家科技支撑计划项目(2006BAJ01A12-11);2008年度教育部科学技术研究重点项目(2008142)

摘　　要：随着城市化以及节能形势快速蓬勃发展,国内外对建筑物的节能检测工作越来越重视,面对传统、复杂的热工检测技术,红外热成像法呈现了对被测物体无影响、检测表面温度反应速度快、测温范围宽、精度高等优点,且应用范围不断扩大。概述了红外热成像技术探测建筑外墙热工缺陷的原理以及国内外研究现状,利用国内现有的相对温差以及相对面积二指标判定热工缺陷严重等级,并考虑到现有的量化指标在实际应用中不足以可视化,提出需要建立新量化指标的展望。With the urbanization and rapid development of energy saving industry, more and more attention is paid to energy-saving testing work both at home and abroad. Compared to traditional complicated thermal testing technology, the infrared thermalgraphy method has such advantages as no affecting on the measured object,fast detection surface temperature reaction speed,wide temperature range and high testing precision,and the range of application is expanding. This paper briefly introduced the basic working principles of infrared thermalgraphy in testing thermal defects of building envelope and the current research status at home and abroad, determined the degree of thermal defect severity by making use of the existing two indicators in China, i.e. relative temperature difference and relative area, taking into account that the existing quantitative indicators can not be visualized in practical application, put forward the prospect of establishing new quantitative indicators.

关 键 词：红外热成像技术 围护结构 热工缺陷 检测 

分 类 号：TU111.3[建筑科学—建筑理论]