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Applied Optics

Applied Optics


  • Vol. 33, Iss. 25 — Sep. 1, 1994
  • pp: 6068–6072

Talbot interferometer with circular gratings for the measurement of temperature in axisymmetric gaseous flames

Chandra Shakher and A. J. Pramila Daniel  »View Author Affiliations

Applied Optics, Vol. 33, Issue 25, pp. 6068-6072 (1994)

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A detailed study for measuring the temperature distribution in axisymmetric flames by using a Talbot interferometer with circular gratings is presented. We increased the sensitivity of the interferometer by optimizing the pitch of the grating and the Talbot plane. We compare the experimental results with the values that were measured with a thermocouple to an accuracy of ±0.2% of full scale ±4 digits. Good agreement is seen between the temperatures measured by use of a thermocouple and those measured by use of Talbot interferometry.

© 1994 Optical Society of America

Original Manuscript: April 16, 1993
Revised Manuscript: November 1, 1993
Published: September 1, 1994

Chandra Shakher and A. J. Pramila Daniel, "Talbot interferometer with circular gratings for the measurement of temperature in axisymmetric gaseous flames," Appl. Opt. 33, 6068-6072 (1994)

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