Simultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric method

In this study, we developed a simultaneous measurement system for measuring the concentration fluctuations of two species using pulsed laser diodes in the light absorption spectrometric method. Conventional methods utilize halogen lamps or continuous laser diodes as light sources for concentration m...

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Main Authors: Takashi KUBO, Hiroki TOYODA, Hiroyuki FURUKAWA
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2016-07-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/82/840/82_16-00203/_pdf/-char/en
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author Takashi KUBO
Hiroki TOYODA
Hiroyuki FURUKAWA
author_facet Takashi KUBO
Hiroki TOYODA
Hiroyuki FURUKAWA
author_sort Takashi KUBO
collection DOAJ
description In this study, we developed a simultaneous measurement system for measuring the concentration fluctuations of two species using pulsed laser diodes in the light absorption spectrometric method. Conventional methods utilize halogen lamps or continuous laser diodes as light sources for concentration measurements. These light sources require multi-monochrometers or dichroic mirrors, which makes these methods rather expensive. However, using pulsed laser diodes as the light sources eliminates the need for additional multi-monochrometers and dichroic mirrors. A diffusion field consisting of two dye species in an axisymmetric turbulent jet was measured using the developed concentration measurement system. To ascertain the validity of our concentration measurements, we compared the present measurement results with those of a single dye species and previous studies. It was observed that the concentrations of the two dye species were measured accurately by the present measuring system. Therefore, such low-cost concentration measurement systems can be developed and applied in various simultaneous measurements of concentration fluctuations of multiple species such as in turbulent reactive flows.
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spelling doaj.art-a472b687cc914254b53385f2a7939f0a2022-12-22T04:16:09ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612016-07-018284016-0020316-0020310.1299/transjsme.16-00203transjsmeSimultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric methodTakashi KUBO0Hiroki TOYODA1Hiroyuki FURUKAWA2Department of Mechanical Engineering, Meijo UniversityDepartment of Mechanical Engineering, Meijo UniversityDepartment of Mechanical Engineering, Meijo UniversityIn this study, we developed a simultaneous measurement system for measuring the concentration fluctuations of two species using pulsed laser diodes in the light absorption spectrometric method. Conventional methods utilize halogen lamps or continuous laser diodes as light sources for concentration measurements. These light sources require multi-monochrometers or dichroic mirrors, which makes these methods rather expensive. However, using pulsed laser diodes as the light sources eliminates the need for additional multi-monochrometers and dichroic mirrors. A diffusion field consisting of two dye species in an axisymmetric turbulent jet was measured using the developed concentration measurement system. To ascertain the validity of our concentration measurements, we compared the present measurement results with those of a single dye species and previous studies. It was observed that the concentrations of the two dye species were measured accurately by the present measuring system. Therefore, such low-cost concentration measurement systems can be developed and applied in various simultaneous measurements of concentration fluctuations of multiple species such as in turbulent reactive flows.https://www.jstage.jst.go.jp/article/transjsme/82/840/82_16-00203/_pdf/-char/enconcentration measurementlight absorption spectrometric methodlaser diodeturbulent jetdiffusion
spellingShingle Takashi KUBO
Hiroki TOYODA
Hiroyuki FURUKAWA
Simultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric method
Nihon Kikai Gakkai ronbunshu
concentration measurement
light absorption spectrometric method
laser diode
turbulent jet
diffusion
title Simultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric method
title_full Simultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric method
title_fullStr Simultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric method
title_full_unstemmed Simultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric method
title_short Simultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric method
title_sort simultaneous measurement of concentration fluctuations of two species using pulsed laser diodes in light absorption spectrometric method
topic concentration measurement
light absorption spectrometric method
laser diode
turbulent jet
diffusion
url https://www.jstage.jst.go.jp/article/transjsme/82/840/82_16-00203/_pdf/-char/en
work_keys_str_mv AT takashikubo simultaneousmeasurementofconcentrationfluctuationsoftwospeciesusingpulsedlaserdiodesinlightabsorptionspectrometricmethod
AT hirokitoyoda simultaneousmeasurementofconcentrationfluctuationsoftwospeciesusingpulsedlaserdiodesinlightabsorptionspectrometricmethod
AT hiroyukifurukawa simultaneousmeasurementofconcentrationfluctuationsoftwospeciesusingpulsedlaserdiodesinlightabsorptionspectrometricmethod