Entropy as a wear out indicator: The resistor example
Document typeConference report
Rights accessRestricted access - publisher's policy
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.
CitationCuadras, A.; Ovejas, V.; Quilez, M. Entropy as a wear out indicator: The resistor example. A: International Multi-Conference on Systems, Signals and Devices. "Proceedings of the 10th International Multi-Conference on Systems, Signals and Devices -SSD 2013". Hammamet: 2013, p. 1-5.