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Optical Engineering

Measurement Of Air Pollutants By Fourier Transform Of Absorption Spectrum
Author(s): Yoichi Fujii; Fumio Matsumura
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Paper Abstract

The absorption spectra of air pollutant gases have a complicated structure due to vibrational and rotational levels of the polyatomic molecules. The Fourier transform of the absorption spectra from a gas mixture shows the characteristic peaks for each component gas. The error due to wavelength jitter of the scanning laser is effectively reduced by a Fourier-transformed least-squares method. This process is applied to air pollution measurement.

Paper Details

Date Published: 1 April 1980
PDF: 4 pages
Opt. Eng. 19(2) 192245 doi: 10.1117/12.7972501
Published in: Optical Engineering Volume 19, Issue 2
Show Author Affiliations
Yoichi Fujii, University of Tokyo (Japan)
Fumio Matsumura, University of Tokyo (Japan)


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