An experimental method for making spectral emittance and surface temperature measurements of opaque surfaces

被引：10
|
作者：
Moore, Travis J. [1 ]
Jones, Matthew R. [1 ]
Tree, Dale R. [1 ]
Maynes, R. Daniel [1 ]
Baxter, Larry L. [2 ]
机构：
[1] Brigham Young Univ, Dept Mech Engn, Provo, UT 84602 USA
[2] Brigham Young Univ, Dept Chem Engn, Provo, UT 84602 USA
来源：
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2011年 / 112卷 / 07期
关键词：
Spectral emittance; Surface temperature; FTIR; EMISSIVITY MEASUREMENTS;
D O I：
10.1016/j.jqsrt.2010.08.020
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An experimental procedure has been developed to make spectral emittance and temperature measurements. The spectral emittance of an object is calculated using measurements of the spectral emissive power and of the surface temperature of the object obtained using a Fourier transform infrared (FTIR) spectrometer. A calibration procedure is described in detail which accounts for the temperature dependence of the detector. The methods used to extract the spectral emissive power and surface temperature from measured infrared spectra were validated using a blackbody radiator at known temperatures. The average error in the measured spectral emittance was 2.1% and the average difference between the temperature inferred from the recorded spectra and the temperature indicated on the blackbody radiator was 1.2%. The method was used to measure the spectral emittance of oxidized copper at various temperatures. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1191 / 1196
页数：6
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