FREQUENCY-ANALYSIS OF PULSED OPTOACOUSTIC SIGNALS AND THE APPLICATION TO CHEMICAL-ANALYSIS

被引：5

作者：

FISHER, MR ^{[1
]}

FASANO, DM ^{[1
]}

NOGAR, NS ^{[1
]}

机构：

[1] UNIV CALIF,LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

来源：

APPLIED SPECTROSCOPY | 1982年 / 36卷 / 02期

关键词：

OPTOACOUSTIC SPECTROSCOPY;

D O I：

10.1366/0003702824638827

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The optoacoustic signal generated via pulsed laser excitation-transducer detection is frequency analyzed via a discrete Fourier transform. The frequency spectrum is found to exhibit a pronounced maximum at the transducer resonant frequency. Use of this maximum as a measure of the optoacoustic signal strength allows for discrimination against window absorption and various electrical and mechanical noise sources.

引用

页码：125 / 128

页数：4

共 44 条

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