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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Frazão, Orlando
Universidad de Cantabria
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023NonInvasive Glucose Fiber Sensor Based on Self-Imaging Technique: Proof of Concept
- 2020Magnetostriction assessment with strain gauges and fiber bragg gratingscitations
- 2018The fiber connection method using a tapered silica fiber tip for microstructured polymer optical fiberscitations
- 2016Simultaneous measurement of physical parameters using FBGs embedded in unidirectional and bidirectional composite materialscitations
- 2015Fracture behaviour of wood bonded joints under modes i and II by digital image correlation and fibre Bragg grating sensorscitations
- 2013Simplified sensor design for temperature-strain discrimination using Fiber Bragg Gratings embedded in laminated compositescitations
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article
Magnetostriction assessment with strain gauges and fiber bragg gratings
Abstract
Power transformers have an imperative role in the future developments of the electrical grids. Treated as crucial assets for transportation and distribution of electrical energy, transformers are currently being studied regarding to the integration of technologies aiming to diagnose problems and monitoring data of electrical power grid. Furthermore, environmental noise pollution has gained importance, especially in active units of the power grid, located near consumers, such as transformers. Transformers noise can be classified according to its source: core, windings and cooling. This study addresses an experimental characterization of one of the main causes of transformers core noise-magnetostriction of electrical steel. An evaluation of magnetostriction properties of electrical steel, including resistive strain gauges and Fiber Bragg Gratings (FBGs) measurements with an Epstein frame, are presented and discussed. The magnetic flux density influence on hysteretic strain behavior of magnetostriction was evaluated, as well as the effect of a clamping load on core joints. Nowadays, optical interrogators for Bragg gratings have a high acquisition frequencies and wavelength sensitivity when compared to former optical interrogation systems, allowing to evaluate physical phenomena without electromagnetic interference and with equivalent resolution of conventional strain gauges. © 2019 Cassiano C. Linhares et al.