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Applied Optics

Applied Optics


  • Vol. 36, Iss. 33 — Nov. 20, 1997
  • pp: 8815–8819

Transient two-dimensional fuel-concentration measurement technique

Tadashi Konishi, Syuji Naka, Akihiko Ito, and Kozo Saito  »View Author Affiliations

Applied Optics, Vol. 36, Issue 33, pp. 8815-8819 (1997)

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We propose a nonintrusive experimental technique, the transient fuel-concentration measurement technique (TFMT), that is capable of being used to measure two-dimensional profiles of transient fuel concentrations over an open liquid fuel surface. The TFMT is based on single-wavelength holographic interferometry; its response time is less than 1 μs and spatial resolution is 0.1 mol. %/0.1 mm. It was applied to measure both methanol vapor and n-propanol vapor concentrations. To assess the accuracy of the technique, our results were compared with steady-state methanol and n-propanol fuel-vapor concentrations measured by other researchers with a microsampling technique combined with gas chromatography. We found the TFMT to be accurate for on-line monitoring of two-dimensional profiles of fuel-vapor concentrations.

© 1997 Optical Society of America

Original Manuscript: November 12, 1996
Revised Manuscript: May 8, 1997
Published: November 20, 1997

Tadashi Konishi, Syuji Naka, Akihiko Ito, and Kozo Saito, "Transient two-dimensional fuel-concentration measurement technique," Appl. Opt. 36, 8815-8819 (1997)

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