Abstract:In this paper, a non-dimensional emissivity model with universality is established. For the tri-wavelength method of temperature measurement, based on the non-dimensional emissivity, the applicable measurement condition and theoretical analysis of wavelength choice are mainly introduced. In the discussion of theoretical analysis of wavelength choice, by optimizing the analysis of measurement method and the concept of isothermal line induced by the measurement coordinates, two kinds of ideal choice rules of measurement wavelength are put forward, which will be necessary to the technology application of this tri-wavelength method. Meanwhile the optimizing idea is also applicable to multi-wavelength method of temperature measurement.
Key words:Planck;Tri-wavelength method of temperature measurement;Emissivity;Isotherm
符泰然,程晓舫,范学良,丁金磊. 三波长测温中波长选取原则的理论分析[J]. 光谱学与光谱分析, 2005, 25(02): 166-170.
FU Tai-ran, CHENG Xiao-fang, FAN Xue-liang, DING Jin-lei . Theoretical Analysis of Wavelength Choice in Tri-Wavelength Method of Temperature Measurement . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(02): 166-170.
[1] Incropera Frank P, Dewitt David P. Fundamentals of Heat Transfer. New York:John Wiley & Sons, 1981. 557. [2] Ya Svet D et al. High Temp, -High Press,1979, 11: 117. [3] SUN Xiao-gang, DAI Jing-min, CONG Da-cheng et al(孙晓刚,戴景民,丛大成等). J. Infrared Millim. Waves(红外与毫米波学报),1998,17(3):221. [4] CHENG Xiao-fang, FU Tai-ran, WANG An-quan(程晓舫, 符泰然,王安全). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2002,22(2):180. [5] Advanced Mathematics Education & Research Lab of USTC(中国科学技术大学高等数学教研室). Introduction of Advanced Mathematics. (Second ed. Ⅱ)(高等数学导论(第2版·中册)). Hefei: University of Science & Technology of China Press(合肥:中国科学技术大学出版社),1996. 256. [6] WANG An-quan(王安全). Principle of Temperature Measurement Based on Colors(彩色测温方法的原理研究). Ph. D Thesis of USTC(中国科学技术大学博士论文). 2002.