Entropy as a wear out indicator: The resistor example

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Title:	Entropy as a wear out indicator: The resistor example
Author:	Cuadras Tomàs, Àngel; Ovejas Benedicto, Victòria Júlia; Quílez Figuerola, Marcos
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. GRUP ISI - Grup d'Instrumentació, Sensors i Interfícies
Abstract:	In this contribution we aim at proposing entropy measurements in resistive elements to characterize the induced damage due to current and Joule effect dissipation. 0.25 W off the shelf resistors are biased with constant voltage and pulsed voltage signals, leading to power dissipation in the range of 2 W - 5 W, to accelerate resistor failure. Entropy is inferred from injected power with respect to temperature evolution. Results show an entropy increase as a function of time, thus being possible to define threshold entropy prior to resistor failure. Entropy generation rate also shows a sudden increase in strongly damaged resistors.
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria electrònica -damage Entropy Joule effect reliability resistor
Rights:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Published version Conference Object
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