Sandwich holography for studying convective fields: performance analysis

Dario Ambrosini; Domenica Paoletti; Roberta Di Biase

doi:10.1117/1.3361671

1 March 2010 Sandwich holography for studying convective fields: performance analysis

Dario Ambrosini, Domenica Paoletti, Roberta Di Biase

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Optical Engineering, Vol. 49, Issue 3, 033605 (March 2010). https://doi.org/10.1117/1.3361671

Abstract

Recently, sandwich holography was proposed in heat transfer studies. This technique can provide the temperature gradient without the need to calculate the temperature map and then numerically differentiate it; also phase extraction and phase unwrapping are avoided. A numerical simulation was used to assess the performance of the technique. This investigation shows the ability of the method to obtain the convective coefficient h with an accuracy of about 6%. The measurement algorithm is also relatively robust with respect to noise.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Dario Ambrosini, Domenica Paoletti, and Roberta Di Biase "Sandwich holography for studying convective fields: performance analysis," Optical Engineering 49(3), 033605 (1 March 2010). https://doi.org/10.1117/1.3361671

Published: 1 March 2010

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KEYWORDS

Holographic interferometry

Holography

Holograms

Error analysis

Temperature metrology

Refractive index

Convection

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