Sistema automatizado para la medición de la conductividad térmica de líquidos mediante el método del alambre caliente

S. Alvarado, E. Marín, A. G. Juárez, A. Calderón, R. Ivanov

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We present the implementation of an automated system based on the hot-wire technique for measurement of the thermal conductivity of liquids using high precision equipment (current source and voltage meter) that allow to work without an array of resistances known as a Wheatstone bridge, commonly used in such equipments. We also use a criterion to verify that we are working on the correct linear region of the curve ΔT versus ln(t), which is used for experimental data processing. Finally we validate the functionality of the hot-wire experimental array by measuring the thermal conductivity in samples of liquids with well-known thermal properties.
Original languageAmerican English
Pages (from-to)259-265
Number of pages232
JournalRevista Mexicana de Fisica
StatePublished - 1 Jan 2011

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thermal conductivity
Thermal conductivity of liquids
wire
Wire
Wheatstone bridges
liquid
liquids
Thermal conductivity
Thermodynamic properties
thermodynamic properties
Liquids
Electric potential
electric potential
curves
measuring

Cite this

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title = "Sistema automatizado para la medici{\'o}n de la conductividad t{\'e}rmica de l{\'i}quidos mediante el m{\'e}todo del alambre caliente",
abstract = "We present the implementation of an automated system based on the hot-wire technique for measurement of the thermal conductivity of liquids using high precision equipment (current source and voltage meter) that allow to work without an array of resistances known as a Wheatstone bridge, commonly used in such equipments. We also use a criterion to verify that we are working on the correct linear region of the curve ΔT versus ln(t), which is used for experimental data processing. Finally we validate the functionality of the hot-wire experimental array by measuring the thermal conductivity in samples of liquids with well-known thermal properties.",
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T1 - Sistema automatizado para la medición de la conductividad térmica de líquidos mediante el método del alambre caliente

AU - Alvarado, S.

AU - Marín, E.

AU - Juárez, A. G.

AU - Calderón, A.

AU - Ivanov, R.

PY - 2011/1/1

Y1 - 2011/1/1

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AB - We present the implementation of an automated system based on the hot-wire technique for measurement of the thermal conductivity of liquids using high precision equipment (current source and voltage meter) that allow to work without an array of resistances known as a Wheatstone bridge, commonly used in such equipments. We also use a criterion to verify that we are working on the correct linear region of the curve ΔT versus ln(t), which is used for experimental data processing. Finally we validate the functionality of the hot-wire experimental array by measuring the thermal conductivity in samples of liquids with well-known thermal properties.

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