Magnetic field & current sensors based on FBG with magnetostrictive alloys and composites
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Supervisors: Prof. Marcelo Martins Werneck (UFRJ), Prof. Elnatan Chagas Ferreira (UNICAMP), and Dr. Alex Dante (UFRJ).
R&D Team: Alex Dante, Juan D. Lopez, Rodrigo M. Bacurau, and Larissa M. B. Soares.
Description: Development of magnetic-field and current sensors based on FBG and magnetostrictive materials such as Terfenol-D using magnetic flux density concentration techniques to optimize sensitivity and linearity according to the application. In this project, we also study the use of nanostructured magnetostrictive composites (nanocomposites), which allows for better malleability, ductility, linearity, and a massive reduction in the required amount of the pure magnetostrictive alloy.
Research Output
Journal Papers
SOARES, L.M.B.; LOPEZ, J.D.; ALLIL, R.C.S.B.; DANTE, A.; WERNECK, M.M. Optical Magnetostrictive Current Sensor Based on In-Fiber Fabry-Pérot Cavity. IEEE Sensors Journal, v. 22, p. 20499 - 20507, 2022. DOI
LOPEZ, J.D.; DANTE, A.; CARVALHO, C.C.; ALLIL, R.C.S.B.; WERNECK, M.M. Simulation and Experimental Study of FBG-based Magnetic Field Sensors with Terfenol-D Composites in Different Geometric Shapes. Measurement, v. 172, 108893, 2021. DOI
LOPEZ, J.D.; DANTE, A.‡; CREMONEZI, A.O.; BACURAU, R.; CARVALHO, C.C.; ALLIL, R.C.S.B.; FERREIRA, E. C.; WERNECK, M.M. Fiber-Optic Current Sensor Based on FBG and Terfenol-D with Magnetic Flux Concentration for Enhanced Sensitivity and Linearity. IEEE Sensors Journal, v. 20, p. 3572-3578, 2020. DOI
DANTE, A.‡; LOPEZ, J. D.; CARVALHO, C. C.; ALLIL, R. C. S. B.; WERNECK, M.M. A Compact FBG-Based Magnetostrictive Optical Current Sensor with Reduced Mass of Terfenol-D. IEEE Photonics Technology Letters, v. 31, p. 1461-1464, 2019. DOI
LOPEZ, J. D.; DANTE, A.‡; BACURAU, R. M.; CREMONEZI, A. O.; MOK, R. W.; CARVALHO, C. C.; ALLIL, R. C. S. B.; FERREIRA, E. C.; WERNECK, M. M. Fiber-Optic Current Sensor Based on FBG and Optimized Magnetostrictive Composite. IEEE Photonics Technology Letters, v. 31, p. 1987-1990, 2019. DOI
Conference Papers
DANTE, A.; LOPEZ, J.D.; ARCAS, A.S.; CARVALHO, C.C.; ALLIL, R.C.S.B.; WERNECK, M.M. An Open-Loop FBG-Based Magnetostrictive Current Sensor with Enhanced Sensitivity. In: OSA Optical Sensors and Sensing Congress, 2020, Washington, DC. OSA Optical Sensors and Sensing Congress 2020. LINK
LOPEZ, J. D.; DANTE, A.; ARCAS, A.S.; CARVALHO, C.C.; ALLIL, R.C.S.B.; WERNECK, M. M. Study of Different Shapes in the Sensitivity of FBG-based Magnetostrictive Sensors with Terfenol-D Powder. In: OSA Optical Sensors and Sensing Congress, 2020, Washington, DC. OSA Optical Sensors and Sensing Congress 2020. LINK
DANTE, A.; LOPEZ, J.D.; TROVÃO, T.; MOK, R.W.; CARVALHO, C.C.; ALLIL, R.C.S.B.; WERNECK, M.M. A Compact FBG-based Toroidal Magnetostrictive Current Sensor with Reduced Mass of Terfenol-D. In: Optical Sensors, 2019, San Jose. OSA Optical Sensors and Sensing Congress 2019. DOI
LOPEZ, J.D.; DANTE, A.; TROVÃO, T.; MOK, R.W.; CARVALHO, C.C.; ALLIL, R.C.S.B.; BORGHI, F.; WERNECK, M.M. Magnetic field sensor based on FBG and magnetostrictive composites of Terfenol-D with oriented magnetic domains. In: Optical Sensors, 2019, San Jose. OSA Optical Sensors and Sensing Congress 2019. DOI
LOPEZ, J.D.; CARVALHO, C.C.; WERNECK, M.M.; DANTE, A.; CREMONEZI, A.O.; FERREIRA, E.C.; SALLES, B.R.; GOMES, A.M.S.; BORGHI, F.; RIASCOS, H.; ALLIL, R.C.S.B. A Fiber-optic Current Sensor Based on FBG and Terf enol-D with Magnetic Flux Density Concentration. In: 2019 IEEE SENSORS, 2019, Montreal. 2019 IEEE SENSORS. IEEE, 2019. DOI
LOPEZ, J. D.; DANTE, A.; TROVÃO, T.; MOK, R.W.; CARVALHO, C.C.; ALLIL, R.C.S.B.; BORGHI, F.F.; WERNECK, M.M. Optical Current Sensor Based on Magnetostrictive Composites. In: Second Latin American Workshop on Optical Fiber Sensors (LAWOFS), Rio de Janeiro, Brazil, 2019. LINK
GARCAO, L.A.; NAZARE, F.V.B.; ALLIL, R.C.S.B.; MOK, R.W.; SILVEIRA, P.; DANTE, A.; CARVALHO, C.C.; KELEY, M.; WERNECK, M.M. Temperature compensation method for FBG-based current sensors for transmission lines. In: 2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), Houston, USA, 2018. DOI
In-fiber Fabry-Pérot current sensor (IEEE Sensors Journal, 2022).
In-fiber Fabry-Pérot current sensor (IEEE Sensors Journal, 2022).
FEM simulation of 3-phase induction motor with fiber-optic magnetic field sensor (Unpublished results, 2025).
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