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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 57, Iss. 9 — Sep. 1, 2003
  • pp: 1087–1092

Optimization of a Microphone for Photoacoustic Spectroscopy

Klaus Wilcken and Jyrki Kauppinen

Applied Spectroscopy, Vol. 57, Issue 9, pp. 1087-1092 (2003)


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Abstract

The principles of optimizing a microphone for a photoacoustic detector in the nonresonant mode of operation are presented. Performance of the constructed optical cantilever microphone is compared to the commercial electret microphone by measuring the photoacoustic spectrum of methane with both systems. The sensitivity of the presented photoacoustic detector in the nonresonant mode of operation is 100 times higher with the optical cantilever microphone than with the electret microphone.

Citation
Klaus Wilcken and Jyrki Kauppinen, "Optimization of a Microphone for Photoacoustic Spectroscopy," Appl. Spectrosc. 57, 1087-1092 (2003)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-57-9-1087

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