Temperature mapping in flames by moire deflectometry

E. Bar-Ziv; S. Sgulim; O. Kafri; E. Keren

doi:10.1364/AO.22.000698

Temperature mapping in flames by moire deflectometry

E. Bar-Ziv, S. Sgulim, O. Kafri, E. Keren

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

The theory of moire deflectometry is derived using the Fourier series approach. The advantages and disadvantages of the infinite fringe limit are demonstrated. The approach of fringe deviation is compared to the intensity measurement, which is selected as being more suitable for flames. An experimental technique based on pointwise scanning is developed to obviate the deficiencies of the video system used previously. Moire data of CH₄/air flame are interpreted, and a full map of the temperature and gas density in the flame is produced. A comparison between moire deflectometry and related techniques is given.

Original language	English
Pages (from-to)	698-705
Number of pages	8
Journal	Applied Optics
Volume	22
Issue number	5
DOIs	https://doi.org/10.1364/AO.22.000698
State	Published - 1 Mar 1983
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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AB - The theory of moire deflectometry is derived using the Fourier series approach. The advantages and disadvantages of the infinite fringe limit are demonstrated. The approach of fringe deviation is compared to the intensity measurement, which is selected as being more suitable for flames. An experimental technique based on pointwise scanning is developed to obviate the deficiencies of the video system used previously. Moire data of CH4/air flame are interpreted, and a full map of the temperature and gas density in the flame is produced. A comparison between moire deflectometry and related techniques is given.

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Temperature mapping in flames by moire deflectometry

Abstract

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