Title :
Calculation of temperature dependency of acoustic properties of diatomic gases using spectroscopic data
Author :
Martinsson, Pär-Erik
Author_Institution :
EISLAB, Lulea Univ. of Technol., Sweden
Abstract :
This paper describes how optical spectroscopic constants can be used to calculate the speed of sound as a function of temperature in diatomic gases. A general expression for the speed of sound is derived by using the vibrational partition function of the gas. The presented method was evaluated for oxygen and nitrogen. The results are in good agreement with the measured data.
Keywords :
acoustic wave velocity; nitrogen; oxygen; spectroscopy computing; temperature measurement; acoustic properties; diatomic gases; general expression; optical spectroscopic constants; sound speed; spectroscopic data; temperature dependency; vibrational partition function; Boltzmann distribution; Energy states; Gases; Genetic expression; Nitrogen; Oxygen; Paper technology; Spectroscopy; Temperature dependence;
Conference_Titel :
Ultrasonics, 2003 IEEE Symposium on
Print_ISBN :
0-7803-7922-5
DOI :
10.1109/ULTSYM.2003.1293183
