您好,欢迎访问三七文档
·1 ·徐恒,韩义中,杨永军(中航工业北京长城计量测试技术研究所,北京100095) :黑体辐射源作为辐射测温仪器的校准装置,近几十年来随着红外测温技术的发展而取得了飞速进步。本文从黑体辐射源的发展历史、研究内容、发展方向和目前存在的问题几方面作了介绍。:黑体辐射源;辐射测温;发射率;均匀性:TP942 :A :1674-5795(2009)05-0001-03DevelopmentofBlackbodySourceXUHeng,HANYi-zhong,YANGYong-jun(ChangchengInstitudeofMetrologyMeasurement,Beijing100095,China)Abstract:Asthecalibrationinstrumentoftheradiationtemperaturemeasurementequipment,theblackbodysourcehasdevelopedrapidlywiththedevelopmentoftheinfraredthermalmeasurement.Inthispaper,thedevelopmenthistory,concreteresearchcontent,developingdirec-tion,existingproblemsandsoonoftheblackbodysourceareintroduced.Keywords:blackbodysource;radiationtemperaturemeasurement;emissivity;uniformity0 1990(ITS-90),。,,CIPM(),。,、、、。1 1860,:。,,,,。,,、,,:2009-05-20:(1985-),,,。,。1960Bed-ford200℃,,,0.01℃,εn=0.998±0.001;1966,ClarkMoore1100~1325℃,,(Ni2O3)。70,,,,,。1970,Bliss420~760℃,,;Busse19751980,800℃,。,:80、,40~150℃,/,0.4~0.6℃,0.9995;80mm、。,-,450~720℃,,,,,;,11mK。·2 · 2009年第29卷第5期,,,,,、、。2 :;;。。,。。,。,。,。2.1 2.1.1 空腔形状的选择。:、-、、、。、,。Gouffe:ε0=ε1+(1-ε)ASt-AS0ε1-ASt+ASt:A;St();AS0=RL2,R,L。、,:、-、、、。,,。2.1.2 空腔长径比的选择,(/)Gouffe。,0.78,6ε≥0.995。,,3~6,,,,,,。2.2 2.2.1 空腔有效发射率的计算,,:、、、。、、。:。Buckley-SparrowBedford-Ma。Buckly。SparrowBuckly,。BedfordC.K.Ma,。、Buckley-Sparrow———,Bedford,,。:,、。DeVosGouffe。DeVos,。Gouffe,,,。,,。,。Monte-Carlo, ·3 ·,-,,。,,。2.2.2 温度均匀性的实现,、。。,,。,,,。,。,、、,,。2.3 。,,。2.3.1 比对法,。,。2.3.2 发射率计算和测量温度分布相结合。,;,,。,,,,,,。2.3.3 ———,,,。::εa(x0,λ)=εa0(x0,λ)+1-ε0(λ)λε0(λ)·(Nε0(λ)2+Mε0(λ)+K):εa0(x0,λ)。ε0(λ),εa0(x0,λ)λ1,λ2,λ3εa(x0,λ1),εa(x0,λ2),εa(x0,λ3)N,M,K,εa(x0,λ)。3 ,,,。,。,。,,、。,。,。,,,。。、,。,。:①;②;③,;④,。[1].[J].,1999(3):3-11.[2],.[J].,2008,28(S1):6-9.[3],.(ITS-90)[J].,2001(2):13-20.[4].[D].:,1996.
本文标题:黑体辐射源的发展
链接地址:https://www.777doc.com/doc-1772921 .html