瞬态双热线液体导热仪的研制及测试  

Research for the Two Transient Hot-Wire Thermal-conductive Instrument

作　　者：刘玉东[1] 童明伟[1] 何钦波[1] 

机构地区：[1]重庆大学动力工程学院,重庆400044

出　　处：《现代科学仪器》2005年第5期37-39,共3页Modern Scientific Instruments

基　　金：重庆市科技攻关项目(20025567)资助

摘　　要：介绍了瞬态双热线法测试液体导热系数的基本原理,研制了一套瞬态双热线液体导热仪,并对乙醇、乙二醇、甘油和蒸馏水进行了检验性测试,发现最大误差为2.6 6%,表明此仪器具有较高的可靠性和精度,可用于科研及工业测试。A new experimental instrument for measuring the thermal conductivity of liquid has been established, which is based on the two transient hot-wire method. The instrument is verified by some standard reference materials： ethanol, glycol, glycerol and distilled water. The biggest relative error of the measured values is 2.66%,which demonstrates that the instrument is reliable and accurate, and can be applied in scientific research and industrial test.

关 键 词：瞬态热线法 液体 导热系数 

分 类 号：TH81[机械工程—仪器科学与技术]