10 October 2013 Measuring of temperatures of a candle flame using four multidirectional point-diffraction interferometers
Juan C. Aguilar, Luís Raúl Berriel-Valdos, Jose Felix Aguilar
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Abstract
An optical system formed by four point-diffraction interferometers is used for measuring the temperature distribution of a candle flame. It is assumed that the phase can be expressed in terms of the Radon transform, and it is processed with a tomographic iterative algorithm to obtain the temperatures. The interferograms show the asymmetry of the candle flame, justifying the use of a tomographic iterative algorithm instead of the Abel inversion. The resulting temperature distribution verifies the usefulness of the proposed method.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2013/$25.00 © 2013 SPIE
Juan C. Aguilar, Luís Raúl Berriel-Valdos, and Jose Felix Aguilar "Measuring of temperatures of a candle flame using four multidirectional point-diffraction interferometers," Optical Engineering 52(10), 104103 (10 October 2013). https://doi.org/10.1117/1.OE.52.10.104103
Published: 10 October 2013
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CITATIONS
Cited by 13 scholarly publications.
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KEYWORDS
Fourier transforms

Interferometers

Radon transform

Tomography

Optical engineering

Refractive index

Temperature metrology

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