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Proceedings Paper

Heat flux sensor based on photothermal beam deflection for thermal characterization of liquids
Author(s): G. E. Sandoval-Romero; J. Hernandez-Cedillo; E. A. Martinez-Gomez; Augusto Garcia-Valenzuela; C. Sanchez-Perez; Juan Hernandez-Cordero
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Paper Abstract

We propose and study a novel optoelectronic device for thermal characterization of materials. It is based on monitoring the photothermal deflection of a laser beam within a slab of a thermo-optic material in thermal contact with the material under study. An optical angle sensor is used to measure the laser deflection providing a simple and compact experimental arrangement. We demonstrate the principle of operation of the sensor and simple procedure that can be used to measure thermal effusivity of liquids. The proposed device could be implemented into a compact sensor head for remote measurements using electrical and fiber optic links.

Paper Details

Date Published: 7 April 2004
PDF: 11 pages
Proc. SPIE 5478, Laser Optics 2003: Solid State Lasers and Nonlinear Frequency Conversion, (7 April 2004); doi: 10.1117/12.560994
Show Author Affiliations
G. E. Sandoval-Romero, Univ. Nacional Autonoma de Mexico (Mexico)
J. Hernandez-Cedillo, Univ. Nacional Autonoma de Mexico (Mexico)
E. A. Martinez-Gomez, Univ. Nacional Autonoma de Mexico (Mexico)
Augusto Garcia-Valenzuela, Univ. Nacional Autonoma de Mexico (Mexico)
C. Sanchez-Perez, Univ. Nacional Autonoma de Mexico (Mexico)
Juan Hernandez-Cordero, Univ. Nacional Autonoma de Mexico (Mexico)


Published in SPIE Proceedings Vol. 5478:
Laser Optics 2003: Solid State Lasers and Nonlinear Frequency Conversion
Vladimir I. Ustugov, Editor(s)

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