Measurement of speed of sound in a gas-filled acoustic resonator

Author

Benedetto, G. ; Gavioso, R.M. ; Spagnolo, R.

Author_Institution

Istituto Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy

Volume

1

fYear

1996

fDate

1996

Firstpage

257

Abstract

Gas-filled resonators are excellent tools both for precision measurement of sound velocity and for photoacoustic spectroscopy applications. This paper aims to show the major selectivity obtainable in excitation of acoustic modes varying the optical absorption coefficient of the gas when an optical source is used. The effect of microphone performance on the response of the resonator in a typical range of gas pressure values is also considered

Keywords

acoustic resonance; acoustic resonators; acoustic wave velocity measurement; microphones; optical constants; photoacoustic effect; excitation of acoustic modes; gas pressure values; gas-filled acoustic resonator; measurement accuracy; microphone performance; optical absorption coefficient; photoacoustic spectroscopy; precision measurement; selectivity; sound velocity; speed of sound; Absorption; Acoustic measurements; Acoustic waves; Laser excitation; Microphones; Optical resonators; Optical surface waves; Resonance; Resonant frequency; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1996. IMTC-96. Conference Proceedings. Quality Measurements: The Indispensable Bridge between Theory and Reality., IEEE

Conference_Location

Brussels

Print_ISBN

0-7803-3312-8

Type

conf

DOI

10.1109/IMTC.1996.507387

Filename

507387