Výsledky vyhledávání - "I. M. Nascimento"

Vibration and Magnetic Field Sensing Using a Long-Period Grating

Autor: Cristiano M. B. Cordeiro, Giancarlo Chesini, José Baptista, I. M. Nascimento, Pedro A. S. Jorge

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
IEEE Sensors Journal

A long-period grating (LPG) written on a standard single mode fiber is investigated as a fiber optic sensor for vibration and magnetic field sensing. It is demonstrated the high sensitivity of the device to applied curvature and the possibility to mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19b6660a705b6212879ef224da0b0c0b
https://doi.org/10.1109/jsen.2017.2743112

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Intensity-Modulated Optical Fiber Sensor for AC Magnetic Field Detection

Autor: Pedro A. S. Jorge, José Baptista, Jose L. Cruz, Miguel V. Andrés, I. M. Nascimento

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

An erbium-doped (Er3+) fiber optic laser is proposed for sensing alternated magnetic fields by measuring the laser intensity modulation. The sensor is fabricated using two partially overlapped narrow-band fiber Bragg gratings (FBGs) and a section of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7115169c8e3b437953a3444d66f657d1
https://doi.org/10.1109/lpt.2015.2470135

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Novel optical current sensor for metering and protection in high power applications

Autor: João C. W. A. Costa, I. M. Nascimento, Pedro A. S. Jorge, José Baptista, M. A. G. Martinez, A. C. S. Brígida

Publikováno v: Instrumentation Science & Technology. 44:148-162

A clamp-on optical current sensor prototype for metering and protection applications in high power systems was developed and characterized. The system is based on the Faraday effect in a low birefringence, high Verdet constant, 8 cm long SF57 Schott

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75967df49f9985a95daea457652a8ef4
https://doi.org/10.1080/10739149.2015.1086784

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Optical Current Sensors for High Power Systems: A Review

Autor: I. M. Nascimento, Jose Luis Santos, José Baptista, Hugo F. Martins, Antonio B. Lobo Ribeiro, Pedro A. S. Jorge, Orlando Frazão, Ricardo M. Silva

Publikováno v: Applied Sciences, Vol 2, Iss 3, Pp 602-628 (2012)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

The intrinsic advantages of optical sensor technology are very appealing for high voltage applications and can become a valuable asset in a new generation of smart grids. In this paper the authors present a review of optical sensors technologies for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c98def67f49d7d6c6eab4b34feebe62
http://www.mdpi.com/2076-3417/2/3/602

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Erbium doped optical fiber lasers for magnetic field sensing

Autor: Jose L. Cruz, José Baptista, Miguel V. Andrés, I. M. Nascimento, Pedro A. S. Jorge

Publikováno v: SPIE Proceedings.

In this work two erbium doped optical fiber laser configurations for magnetic field measurement are implemented and compared. The first laser is set-up in a loop configuration and requires only a single FBG (Fiber Bragg Grating), acting as mirror. A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bf3fe97097f90c8c439b786f18abf19f
https://doi.org/10.1117/12.2195073

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Magnetic field measurement using a fiber laser sensor in ring arrangement

Autor: Pedro A. S. Jorge, I. M. Nascimento, Miguel V. Andrés, José Baptista, Jose L. Cruz

Publikováno v: SPIE Proceedings.

In this work an optical fiber laser with loop configuration was developed for magnetic field measurement. The transducer element is an FBG written in a HiBi fiber whose wavelength is modified using a magnetostrictive material that applies deformation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::852b51d6fc9d1ce92c019031fbe41a95
https://doi.org/10.1117/12.2182644

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Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer

Autor: Miguel V. Andrés, José Baptista, Pedro A. S. Jorge, I. M. Nascimento, Jose L. Cruz

Publikováno v: Nascimento, I. M. Baptista, M. J. M. Jorge, P. A. S. Cruz Muñoz, José Luis Andrés, Miguel V. 2015 Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer Sensors and Actuators A-Physical 235 227 233
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
RODERIC. Repositorio Institucional de la Universitat de Valéncia
instname

An erbium doped (Er3+) fiber optic laser is proposed for magnetic field measurement. A pair of FBGs glued onto a magnetostrictive material (Terfenol-D rod) modulates the laser wavelength operation when subject to a static or a time dependent magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dcb78e8de08d81ff6eb7e3dc87ba487
https://hdl.handle.net/10550/82028

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Fabrication and characterization of spun HiBi PCF fibers for current sensing applications

Autor: Pedro A. S. Jorge, Juliano G. Hayashi, Jessé C. Costa, M. A. G. Martinez, Cristiano M. B. Cordeiro, A. C. S. Brígida, Giancarlo Chesini, I. M. Nascimento, José Baptista

Publikováno v: SPIE Proceedings.

In this paper three highly birefringent (HiBi) spun photonic crystal fibers (PCF) are fabricated and their performance are characterized for electrical current measurement. These fibers are tested by coiling them around an electric conductor using th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::50aad644e21565333b078aaac2ff2d37
https://doi.org/10.1117/12.2059197

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Development of an electrical current sensor prototype for applications in high-power lines

Autor: Jessé C. Costa, Pedro A. S. Jorge, José Baptista, I. M. Nascimento, A. C. S. Brígida, M. A. G. Martinez

Publikováno v: SPIE Proceedings.

A magneto-optical current sensor, based on a low birefringence SF57 glass prism, using a dual quadrature polarimetric configuration was implemented and tested aiming its application in high voltage power lines. Sensor operation is characterized and c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b4a8208df99f97933708ee5a928723e
https://doi.org/10.1117/12.2031429

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