Abstract
An apparatus is described which allows an accurate determination of the acoustic resonance frequencies of a cylindrical cell. Three different applications of such a device are discussed: 1. Static gas analysis. The resonance frequency of the first radial mode is determined in the mixtures 1 % CH4 + 99 % N2 and 1 % CH4 + 99 % CO to test the accuracy of the method and to obtain an accurate value of the cell radius. 2. Dynamic gas analysis. The shift of the resonance frequency during the mixing of CH4 and N2 is detected by repeated recording of the acoustic resonance curves. 3. Determination of vibrational relaxation times. The dispersion of the resonance frequency is measured in the pressure region where relaxation processes occur.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
A.G. Bell, Upon the production of sound by radiant energy, Phil.Mag. 11 510 (1881)
C. F. Dewey Jr., R.D. Kamm, and C.E. Hackett, Acoustic amplifier for detection of atmospheric pollutants, Appl.Phys.Lett. 12 633 (1973)
R.D. Kamm, Detection of weakly absorbing gases using a resonant optoacoustic method, J.Appl.Phys. 47 3550 (1976)
E. Nodov, Optimization of resonant cell design for optoacoustic gas spectroscopy (H-type), Appl.Opt. 17 1110 (1978)
J. Röper and P. Hess, to be published
K. Frank and P. Hess, The role of relaxational processes in resonant optoacoustic spectroscopy, Ber.Bunsenges.Phys.Chem. 84 724 (1980)
L.J. Thomas, M.J. Kelly, and N.M. Amer, The role of buffer gases in optoacoustic spectroscopy, Appl.Phys. Lett. 32 736 (1978)
M.R. Moldover, M. Waxman, and M. Greenspan, Spherical acoustic resonators for temperature and thermophysical property measurements, High Temperatures - High Pressures 11 75 (1979)
K. Frank and P. Hess, Accurate measurement of relaxation times with an acoustically resonant optoacoustic cell, Chem.Phys.Lett. 68 540 (1979)
J. Röper and P. Hess, to be published
A.J. Zuckerwar and. W.A. Griffin, Resonant tube for measurement of sound absorption in gases at low frequency/pressure ratios, J.Acoust.Soc.Am. 68 218 (1980)
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1984 Springer Fachmedien Wiesbaden
About this chapter
Cite this chapter
Röper, J., Frank, K., Hess, P. (1984). Applications of Resonant Photoacoustic Spectroscopy. In: Lüscher, E., Korpiun, P., Coufal, HJ., Tilgner, R. (eds) Photoacoustic Effect Principles and Applications. Vieweg+Teubner Verlag, Wiesbaden. https://doi.org/10.1007/978-3-663-06820-4_10
Download citation
DOI: https://doi.org/10.1007/978-3-663-06820-4_10
Publisher Name: Vieweg+Teubner Verlag, Wiesbaden
Print ISBN: 978-3-528-08573-5
Online ISBN: 978-3-663-06820-4
eBook Packages: Springer Book Archive