血液热导率的瞬态热线法测试  

MEASUREMENT OF BLOOD THERMAL CONDUCTIVITYBY TRANSIENT LINE-SOURCE METHOD

作　　者：张洪济[1] 童明伟[1] 刘小云 雷亨顺 

机构地区：[1]重庆大学工程热物理研究所

出　　处：《中国生物医学工程学报》1995年第2期97-102,共6页Chinese Journal of Biomedical Engineering

基　　金：国家自然科学基金

摘　　要：基于无限大介质中的径向一维非稳态导热分析所确立的血液热导率的瞬态热线法原理和前期工作中存在的缺陷〔１〕，对测试装置中的线热源、测温方法及检测技术等进行了改进，改善了装置的性能，提高了测试的准确性。用正常人体的新鲜血液进行了测试，并对测试结果的不确定度作了分析，不确定度不超过２．５％。Based on measuring principle of transient line-source method for ther-mal conductivity of blood established by analysis of one-dimensional un-steady heat conduction in infinite medium and defects observed in theprevious work[1],the line heat source method and technique of heat mea-suring were further improved, and the performance of the apparatusobviously improved with increased accuracy of measurement.Fresh bloodof a healthy person was used as a sample in the experimental mea-surement. The inaccuracy of the measured results was analyzed to be2.5% .

关 键 词：血液流变学 生物传热学 热导率 线热源 

分 类 号：Q66[生物学—生物物理学] R331.13[医药卫生—人体生理学]