Turbine Blade Three-Wavelength Radiation Temperature Measurement Method Based on Reflection Error Correction

doi:10.3390/app11093913

CIOMP OpenIR

	Turbine Blade Three-Wavelength Radiation Temperature Measurement Method Based on Reflection Error Correction
	K. F. Zheng; J. G. Lu; Y. Z. Zhao; J. Tao; Y. X. Qin; Y. P. Chen; W. B. A. Wang; Q. Sun; C. Wang and J. Q. Liang
	2021
发表期刊	Applied Sciences-Basel
卷号	11 期号:9 页码:17
摘要	The turbine blade is a key component in an aeroengine. Currently, measuring the turbine blade radiation temperature always requires obtaining the emissivity of the target surface in advance. However, changes in the emissivity and the reflected ambient radiation cause large errors in measurement results. In this paper, a three-wavelength radiation temperature measurement method was developed, without known emissivity, for reflection correction. Firstly, a three-dimensional dynamic reflection model of the turbine blade was established to describe the ambient radiation of the target blade based on the real surface of the engine turbine blade. Secondly, based on the reflection correction model, a three-wavelength radiation temperature measurement algorithm, independent of surface emissivity, was proposed to improve the measurement accuracy of the turbine blade radiation temperature in the engine. Finally, an experimental platform was built to verify the temperature measurement method. Compared with three conventional colorimetric methods, this method achieved an improved performance on blade temperature measurement, demonstrating a decline in the maximum error from 6.09% to 2.13% and in the average error from 2.82% to 1.20%. The proposed method would benefit the accuracy in the high-temperature measurement of turbine blades.
DOI	10.3390/app11093913
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收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65719
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	K. F. Zheng,J. G. Lu,Y. Z. Zhao,et al. Turbine Blade Three-Wavelength Radiation Temperature Measurement Method Based on Reflection Error Correction[J]. Applied Sciences-Basel,2021,11(9):17.
APA	K. F. Zheng.,J. G. Lu.,Y. Z. Zhao.,J. Tao.,Y. X. Qin.,...&C. Wang and J. Q. Liang.(2021).Turbine Blade Three-Wavelength Radiation Temperature Measurement Method Based on Reflection Error Correction.Applied Sciences-Basel,11(9),17.
MLA	K. F. Zheng,et al."Turbine Blade Three-Wavelength Radiation Temperature Measurement Method Based on Reflection Error Correction".Applied Sciences-Basel 11.9(2021):17.

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