Development of a Multi-Color light collection probe with high spatial resolution (1st Report, Evaluation of spatial resolution by Ray-Tracing Method)

Takashi Wakabayashi, Fumiteru Akamatsu, Masashi Katsuki, Yukio Mizutani, Yuji Ikeda, Nobuyuki Kawahara, Tsuyoshi Nakajima

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Spot monitoring of radical chemiluminescence is especially useful for flame diagnostics, if the measuring control volume size can be clearly defined. However, a typical light collection system consisting of a spherical lens and a pinhole suffers from its wide and long control volume, as well as its significant chromatic aberration between UV and visible ranges in simultaneous multi-color measurement. In some cases, researchers were obliged to insert a control-volume limiting device into the flame for observing the local emission intensities of radical chemiluminescence. To resolve these problems, we have developed a light collection probe of Cassegrain type, which consists of a set of concave and convex mirrors combined with an optical fiber cable, and is free from both chromatic and spherical aberrations, which was named Multi-color Integrated Cassegrain Receiving Optics (MICRO). The spatial resolution was analyzed by the ray-tracing method, and the effective control volume size was estimated as 1.6 mm-long and 200 μn diameter, which is as small as that of LDA or PDA.

Original languageEnglish
Pages (from-to)925
Number of pages1
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume64
Issue number619
Publication statusPublished - 1998
Externally publishedYes

Fingerprint

Chemiluminescence
Ray tracing
Aberrations
ray tracing
spatial resolution
Color
color
Optical cables
evaluation
probes
high resolution
chemiluminescence
Personal digital assistants
Optical resolving power
aberration
flames
Lenses
Optics
Monitoring
pinholes

Keywords

  • Casse-grain-type optics
  • Combustion
  • Flame
  • Optical engineering
  • Optical probe
  • Ray-Tracing method
  • Spatial resolution

ASJC Scopus subject areas

  • Mechanical Engineering
  • Condensed Matter Physics

Cite this

Development of a Multi-Color light collection probe with high spatial resolution (1st Report, Evaluation of spatial resolution by Ray-Tracing Method). / Wakabayashi, Takashi; Akamatsu, Fumiteru; Katsuki, Masashi; Mizutani, Yukio; Ikeda, Yuji; Kawahara, Nobuyuki; Nakajima, Tsuyoshi.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 64, No. 619, 1998, p. 925.

Research output: Contribution to journalArticle

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