Temperature mapping in flames by moire deflectometry

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

Research output: Contribution to journalArticlepeer-review

50 Scopus citations


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 languageEnglish
Pages (from-to)698-705
Number of pages8
JournalApplied Optics
Issue number5
StatePublished - 1 Mar 1983
Externally publishedYes

ASJC Scopus subject areas

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


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