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Detail
Journal Article
Synergetic Resonance Matching of a Microphone and a Photoacoustic Cell
- Issue Date
- 2017-04
- Citation
- Sensors, v.17, no.4, pp.1-10
- ISSN
- 1424-8220
- Publisher
- MDPI AG
- Language
- English
- Type
- Journal Article
- Abstract
- We propose an approach to match the resonant characteristics of a photoacoustic cell with that of a microphone in order to enhance the signal-to-noise ratio in the photoacoustic sensor system. The synergetic resonance matching of a photoacoustic cell and a microphone was achieved by observing that photoacoustic cell resonance is merged with microphone resonance, in addition to conducting numerical and analytical simulations. Using this approach, we show that the signal-to-noise ratio was increased 3.5-fold from the optimized to non-optimized cell in the photoacoustic spectroscopy system. The present work is expected to have a broad impact on a number of applications, from improving weak photoacoustic signals in photoacoustic spectroscopy to ameliorating various sensors that use acoustic resonant filters.
- KSP Keywords
- Photoacoustic cell, Photoacoustic spectroscopy, Sensor system, Signal noise ratio(SNR), Signal-to-Noise, resonant characteristics
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
