Title :
Predicting the Resonant Frequency of Photoacoustic Cells With Side Branches
Author :
Schill, John F. ; Holthoff, Ellen L. ; Pellegrino, Paul M.
Author_Institution :
Res. Lab., Sensors & Electron Devices Directorate, U.S. Army, Adelphi, MD, USA
Abstract :
A theoretical method for predicting the resonant frequencies of acoustic resonators with side branches is introduced. This method is successfully extended to microelectromechanical-scale photoacoustic cell resonators with complex side branch structures. Resonant frequencies are calculated to within a few percent of experimental results. The effect of the side branch hole diameter on the resonant frequency is also demonstrated.
Keywords :
acoustic resonance; acoustic resonators; micromechanical devices; photoacoustic spectra; acoustic resonance; acoustic resonators; microelectromechanical-scale photoacoustic cell resonators; photoacoustic spectroscopy; resonant frequency; Acoustics; Electron tubes; Impedance; Optimization; Resonant frequency; Sensors; Spectroscopy; Acoustic resonance; cylindrical tube with side branch; photoa coustic spectroscopy; photoacoustic cell; photoacoustic spectroscopy;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2014.2369254
