Current sensor using heterodyne detection

José A. Ferrari; Alfredo Dubra; Alfredo Arnaud; Daniel Perciante

doi:10.1364/AO.38.002808

Current sensor using heterodyne detection

José A. Ferrari, Alfredo Dubra, Alfredo Arnaud, Daniel Perciante

Facultad de Ingeniería (UdelaR)

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

8 Citas (Scopus)

Resumen

Based on the Faraday effect for measuring ac current, we describe a fiber-optic sensor that uses laserdiode intensity modulation to perform heterodyne signal detection. The sensor output at the carrier frequency is used as a reference signal to normalize the results. The sensing element consists of a few coils low-birefringence fibers between polarizers. We built the current sensor described above and tested its performance—sensitivity and noise—as functions of the angle between polarizers.

Idioma original	Inglés
Páginas (desde-hasta)	2808-2811
Número de páginas	4
Publicación	Applied Optics
Volumen	38
N.º	13
DOI	https://doi.org/10.1364/AO.38.002808
Estado	Publicada - 1 may. 1999
Publicado de forma externa	Sí

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abstract = "Based on the Faraday effect for measuring ac current, we describe a fiber-optic sensor that uses laserdiode intensity modulation to perform heterodyne signal detection. The sensor output at the carrier frequency is used as a reference signal to normalize the results. The sensing element consists of a few coils low-birefringence fibers between polarizers. We built the current sensor described above and tested its performance—sensitivity and noise—as functions of the angle between polarizers.",

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AU - Ferrari, José A.

AU - Dubra, Alfredo

AU - Arnaud, Alfredo

AU - Perciante, Daniel

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N2 - Based on the Faraday effect for measuring ac current, we describe a fiber-optic sensor that uses laserdiode intensity modulation to perform heterodyne signal detection. The sensor output at the carrier frequency is used as a reference signal to normalize the results. The sensing element consists of a few coils low-birefringence fibers between polarizers. We built the current sensor described above and tested its performance—sensitivity and noise—as functions of the angle between polarizers.

AB - Based on the Faraday effect for measuring ac current, we describe a fiber-optic sensor that uses laserdiode intensity modulation to perform heterodyne signal detection. The sensor output at the carrier frequency is used as a reference signal to normalize the results. The sensing element consists of a few coils low-birefringence fibers between polarizers. We built the current sensor described above and tested its performance—sensitivity and noise—as functions of the angle between polarizers.

UR - https://www.scopus.com/pages/publications/0032606555

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DO - 10.1364/AO.38.002808

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Current sensor using heterodyne detection

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