OPTIMIZATION REASEARCH OF THREE-COLOR PYROMETRY BASED ON MEASUREMENT UNCERTAINTIES

摘要：

Three-color pyrometry with the non-calibration mode was used in the optical diagnostics as an extension of two-color pyrometry. The purpose of this paper is to clarify the effects of inverse algorithms and three wavelengths combination on temperature and soot density distribution determinations in the flame measurements using three-color pyrometry. Based on the inherent measurement uncertainties, different iterative algorithms for three-color method and traditional two-color method were compared through numerical simulations to optimize the temperature measurements. Thus, the optimum iterative algorithm was future chosen. For three-color method with the non-calibration mode, the optimization selection of the wavelengths combination in the visible spectrum range was analyzed. Due to the coupling characteristics of data processing of three wavelength channels, the optimum results of spectrum wavelengths greatly differed from the disposals of single-color method and two-color method, and the analysis approach is applicable for the actual measurement applications.

关键词： temperature three-color pyrometry optical diagnostics optimization measurement uncertainty

作者: Tairan Fu Huan Zhao Jun Zeng Dahai Yang Luping Wang Xiaofang Cheng

作者单位: Key Laboratory for Thermal Science and Power Engineering of Ministry of Education Department of Ther Department of Thermal Engineering Tsinghua University Beijing, P.R.China, 100084 Department of Thermal Science and Energy Engineering University of Science and Technology of China H

会议类型: 国际会议

会议名称: The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)

会议地点: 北京

会议语种:英文

页码: 974-980

在线出版日期: 2010-10-19（万方平台首次上网日期，不代表论文的发表时间）