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Differential Helmholtz resonator as an optoacoustic detector
Applied Optics, 1979Two identical optoacoustic cells are connected to give a Helmholtz resonator. The phase and magnitude of the signals from both cells are investigated. It is shown that an enhancement of the SNR is obtained using the phase properties of the signals.
G, Busse, D, Herboeck
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Helmholtz resonator enhancement of photoacoustic signals
Applied Optics, 1981A Helmholtz resonator attached to a nonresonant photoacoustic cell enhances the responsivity to trace gas absorption by as much as a factor of 15.3. A simple system model based on a lumped parameter approach predicts the experimentally determined resonance frequency f(0) within 6% for all five resonator volumes tried and gives a pressure amplitude ...
W A, McClenny +3 more
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Extraordinary transmission in optical Helmholtz resonators
Optics Letters, 2015Optical Helmholtz resonators (OHRs) have been adapted from acoustics designs for light absorbing structures, exhibiting extreme light confinement. Here, extraordinary transmission of light is theoretically demonstrated through symmetric OHRs, comprising a cavity with two λ/500 narrow slits on either side.
Chevalier, Paul +5 more
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Measuring the Acoustic Response of Helmholtz Resonators
The Physics Teacher, 2015Many experiments have been proposed to investigate acoustic phenomena in college and early undergraduate levels, in particular the speed of sound,1–9 by means of different methods, such as time of flight, transit time, or resonance in tubes. In this paper we propose to measure the acoustic response curves of a glass beaker filled with different gases ...
Martín Monteiro +4 more
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Helmholtz resonance effect in photoacoustic cells
Applied Optics, 1979Some types of photoacoustic spectroscopy sample cells exhibit acoustic resonances which are not explained by organ pipe or Bessel mode analysis. It is demonstrated here that one type of acoustic resonance encountered is explained by a Helmholtz resonator analysis.
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Is Helmholtz Resonance a Problem for Micro-Jet Actuators?
Flow, Turbulence and Combustion, 2007zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lockerby, Duncan A. +2 more
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The quasi-stationary mode of a helmholtz resonator
Journal of Applied Mathematics and Mechanics, 1993zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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