Title :
An approximate method for solving the absorption coefficients
Author :
Xiong Wan ; Donggang Yao ; Zhimin Zhang ; Peng Wang
Author_Institution :
Key Lab. of Nondestructive Test (Minist. of Educ.), Nanchang Hangkong Univ., Nanchang, China
Abstract :
In the measurement of flow field temperature distribution, absorption coefficient which is related to wavelength, temperature is an important intermediate variable. In this paper an approximate method for solving the relationship between the temperature distribution and absorption coefficients is proposed and then is fulfilled with a system of single-wavelength temperature measurement. The relationship between absorption coefficients and the radius is solved by inverse Abel transform, and then the relationship between the temperature distribution and the radius is obtained by a heat exchange model. At last, the relationship between the temperature and the absorption coefficients is obtained by eliminating the radius.
Keywords :
absorption coefficients; approximation theory; flow measurement; heat transfer; inverse problems; temperature distribution; temperature measurement; transforms; absorption coefficients; approximate method; flow field temperature distribution measurement; heat exchange model; intermediate variable; inverse Abel transform; radius; single-wavelength temperature measurement; Temperature detection; absorption coefficients; computed tomography;
Conference_Titel :
Information Science and Control Engineering 2012 (ICISCE 2012), IET International Conference on
Conference_Location :
Shenzhen
Electronic_ISBN :
978-1-84919-641-3
DOI :
10.1049/cp.2012.2272
