Special Section on Speckle-Based Metrology

Real-time measurement of the average temperature profiles in liquid cooling using digital holographic interferometry

[+] Author Affiliations
Carlos Guerrero-Mendez

Universidad Autónoma de Zacatecas, Unidad Académica de Ingeniería Eléctrica, Av. Ramón López Velarde 801, Zacatecas C.P. 98000, México

Universidad Autónoma de Zacatecas, Unidad Académica de Física, Calzada Solidaridad Esq. Con Paseo La Bufa S/N, Zacatecas C.P. 98060, México

Tonatiuh Saucedo Anaya

Universidad Autónoma de Zacatecas, Unidad Académica de Física, Calzada Solidaridad Esq. Con Paseo La Bufa S/N, Zacatecas C.P. 98060, México

M. Araiza-Esquivel, Alfonso López-Martínez, Carlos Olvera-Olvera

Universidad Autónoma de Zacatecas, Unidad Académica de Ingeniería Eléctrica, Av. Ramón López Velarde 801, Zacatecas C.P. 98000, México

Raúl E. Balderas-Navarro

Instituto de Investigación en Comunicación Óptica (IICO-UASLP), Avenue Karakorum 1470, Lomas 4ta. Sección, San Luis Potosí C.P. 78210, México

Said Aranda-Espinoza

Universidad Autónoma de San Luis Potosí, Instituto de Física, Avenue Salvador Nava 6, Zona Universitaria, San Luis Potosí C.P. 78290, México

Opt. Eng. 55(12), 121730 (Oct 27, 2016). doi:10.1117/1.OE.55.12.121730
History: Received April 26, 2016; Accepted October 6, 2016
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Abstract.  We present an alternative optical method to estimate the temperature during the cooling process of a liquid using digital holographic interferometry (DHI). We make use of phase variations that are linked to variations in the refractive index and the temperature property of a liquid. In DHI, a hologram is first recorded using an object beam scattered from a rectangular container with a liquid at a certain reference temperature. A second hologram is then recorded when the temperature is decreased slightly. A phase difference between the two holograms indicates a temperature variation, and it is possible to obtain the temperature value at each small point of the sensed optical field. The relative phase map between the two object states is obtained simply and quickly through Fourier-transform method. Our experimental results reveal that the temperature values measured using this method and those obtained with a thermometer are consistent. We additionally show that it is possible to analyze the heat-loss process of a liquid sample in dynamic events using DHI.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Carlos Guerrero-Mendez ; Tonatiuh Saucedo Anaya ; M. Araiza-Esquivel ; Raúl E. Balderas-Navarro ; Said Aranda-Espinoza, et al.
"Real-time measurement of the average temperature profiles in liquid cooling using digital holographic interferometry", Opt. Eng. 55(12), 121730 (Oct 27, 2016). ; http://dx.doi.org/10.1117/1.OE.55.12.121730


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