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Optical Engineering

Temperature profile measurement of axisymmetric gaseous flames using speckle photography, speckle shearing interferometry, and Talbot interferometry
Author(s): Chandra Shakher; A. J. Pramila Daniel; Anil Kumar Nirala
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Paper Abstract

Capabilities of laser speckle photography, speckle shearing interferometry, and Talbot interferometry with circular gratings to measure the temperature profile of axisymmetric gaseous flames are studied. Detailed experimental and theoretical investigations are presented. The temperatures measured by these three techniques are compared with the temperatures measured by a platinum-platinum-rhodium thermocouple with an accuracy of measurement ±0.2% of full scale ±4 digits. Good agreement between them is seen.

Paper Details

Date Published: 1 June 1994
PDF: 6 pages
Opt. Eng. 33(6) doi: 10.1117/12.168849
Published in: Optical Engineering Volume 33, Issue 6
Show Author Affiliations
Chandra Shakher, Indian Institute of Technology (India)
A. J. Pramila Daniel, Indian Institute of Technology, Delhi (India)
Anil Kumar Nirala, Indian Institute of Technology, Delhi (India)


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