| Literature DB >> 14611038 |
Klaus Wilcken1, Jyrki Kauppinen.
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.Entities:
Mesh:
Substances:
Year: 2003 PMID: 14611038 DOI: 10.1366/00037020360695946
Source DB: PubMed Journal: Appl Spectrosc ISSN: 0003-7028 Impact factor: 2.388