Study on the measurement of temperature field using laser holographic interferometry

Abstract

The temperature field of an axisymmetric ethylene diffusion flame is measured using laser holographic interferometry. Temperature field inversion is completed with the aid of components distribution divided from numerical simulation of combustion and air components assumption. Error analysis of key steps is conducted using the theoretical formula of interference temperature measurement and characteristic structure of fringes obtained from optical simulation. Based on the calculation and analysis, air components assumption will not cause significant error in the low temperature region but will result in high error in the high temperature region. Moreover, the small error in environmental temperature measurement transfer to a high temperature range will expand more than tenfold. Results of temperature measurement using air components assumption relative to combustion simulation require the greatest amendment amounting to seven percent.

Keywords

temperature field / flame / error analysis / holographic interferometry

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 50636010).

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg