RADIATION TEMPERATURE MEASUREMENT OF ARGON ARC PLASMA BY SUBMILLIMETER DIAGNOSTIC TECHNIQUES

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-859-C7-860
Author(s):  
E. A. Tishchenko ◽  
A. V. Golubev ◽  
V. B. Lazarev
Keyword(s):  
Temperature Measurement ◽  
Diagnostic Techniques ◽  
Radiation Temperature ◽  
Arc Plasma

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

2021 ◽  
Vol 11 (9) ◽  
pp. 3913
Author(s):  
Kaifeng Zheng ◽  
Jinguang Lü ◽  
Yingze Zhao ◽  
Jin Tao ◽  
Yuxin Qin ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Turbine Blade ◽  
Measurement Method ◽  
Turbine Blades ◽  
Target Surface ◽  
Maximum Error ◽  
Radiation Temperature ◽  
Average Error ◽  
Real Surface ◽  
Wavelength Radiation

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.

Simplified Calibration Method for Radiation Temperature Measurement System with Wide Dynamic Range

2019 ◽  
Vol 39 (6) ◽  
pp. 0612003
Author(s):  
马冬晓 Dongxiao Ma ◽  
汪家春 Jiachun Wang ◽  
陈宗胜 Zongsheng Chen ◽  
王冰 Bing Wang ◽  
刘洋 Yang Liu
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Dynamic Range ◽  
Calibration Method ◽  
Radiation Temperature ◽  
Wide Dynamic Range ◽  
Temperature Measurement System

Radiation temperature measurement of optical thick hypersonic combustion flow

2017 ◽  
Author(s):  
Bin Qi ◽  
Li-song Zhang ◽  
Wei Dong ◽  
Ning Tian ◽  
Ling Zhao ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Radiation Temperature ◽  
Combustion Flow

Temperature measurement of asymmetrical pulsed TIG arc plasma by multidirectional monochromatic imaging method

2014 ◽  
Vol 59 (2) ◽  
pp. 283-293 ◽  
Author(s):  
Kazufumi Nomura ◽  
Takashi Kishi ◽  
Kentaro Shirai ◽  
Yoshinori Hirata ◽  
Kotaro Kataoka
Keyword(s):  
Temperature Measurement ◽  
Imaging Method ◽  
Arc Plasma ◽  
Monochromatic Imaging
Sign in / Sign up

Export Citation Format

Share Document