Optimization of a microphone for photoacoustic spectroscopy

被引：81

作者：

Wilcken, K ^{[1
]}

Kauppinen, J ^{[1
]}

机构：

[1] Univ Turku, Dept Phys, Lab Opt & Spect, Turku 20014, Finland

来源：

APPLIED SPECTROSCOPY | 2003年 / 57卷 / 09期

关键词：

photoacoustie spectroscopy; optimization; microphone; nonresonant; photoacoustic FT-IR spectroscopy;

D O I：

10.1366/00037020360695946

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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.

引用

页码：1087 / 1092

页数：6

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