用红外光谱仪测定光洁金属表面反射率谱,再根据Kramers-Kronig积分式和Fresnel方程,计算出几种金属表面的折射率n(ω)和消光系数κ(ω),然后使用n(ω),κ(ω)和Mcmahon关系式求出全波长方向发射率(0～90°).与用"全波长方向发射率测定装置"测定的结果的比较表明,在0°～60°的范围内两者基本一致.本文提出的方法克服了在实验上获得材料表面大角度方向发射率的困难.
参考文献
| [1] | S.X.Cheng,S.X.Jing,X.S.Ge,C.C.Yao,Inter.J.of Thermophysics,15(1),177(1994) |
| [2] | M.Garbuny,Optical Physics (New York,Academic Press,1965) p.318 |
| [3] | H.O.McMahon,Thermal Radiation From Partially Transparent Reflecting Bodies,J.Opt.Sco.Amer.,6(40),376(1950) |
| [4] | R.Siegel,Thermal Radiation Heat Transfer,2 edition (Washington,Hemisphere Publishing Company,1981)p.97 |
| [5] | R.P.Feynman,R.B.Leighton,M.Sands,The Feynman Leture on Physics,V.II (California,Addison-WesleyPublishing Company,1977) p.32 |
| [6] | F.P.Ineropera,D.P.Dewitt,Fundamentals of Heat Transfer,4 edition (New York,John Wiley & Son's,Inc.1996) p.310 |
| [7] | Yang Shiming,Tao Wenxuan,Heat Transfer,3 edition (Beijing,Higher Education Publishing Company,1998) p.251 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%