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ID 114336
Title Alternative
Basics on Absorption Spectroscopy
Author
Keywords
Absorption
Concentration and temperature measurement
Combustion
Imaging
Content Type
Journal Article
Description
Absorption spectroscopy uses the absorption phenomena to measure concentration and temperature. The strength of the permeated light is related to the absorber concentration according to Lambert-Beer’s law. Atomic or molecular concentration and temperature are determined by the line shape functions and the Boltzmann equation. There are several methods which uses the principle of absorption phenomena. These include Tunable Diode Laser Absorption Spectroscopy (TDLAS), Fourier transform infrared spectroscopy (FTIR), non-dispersive infrared spectroscopy (NDIR), photoacoustic spectroscopy (PAS), and cavity ring-down spectroscopy (CRDS). This paper explains the basics of absorption spectroscopy for the combustion application. The basics and application of TDLAS using Computer Tomography (CT) is also introduced as a 2D measurement method which can attain the time-series imaging in measured fields.
Journal Title
Journal of the Combustion Society of Japan
ISSN
13471864
24241687
NCID
AA11658490
Publisher
日本燃焼学会
Volume
61
Issue
196
Start Page
126
End Page
131
Published Date
2019-05-15
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
jpn
TextVersion
Publisher
departments
Science and Technology