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[83680] Artykuł: Fiber optic sensor for measuring currents with mains frequenciesCzasopismo: Proceedings of SPIE Tom: 10808, Strony: 1-9ISSN: 1996-756X ISBN: 978-1-5106-2204-3 Wydawca: SPIE-INT SOC OPTICAL ENGINEERING, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA Opublikowano: Pażdziernik 2018 Seria wydawnicza: Proceedings of SPIE Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 15 Klasyfikacja Web of Science: Proceedings Paper DOI Web of Science Keywords: Current sensor  fiber optic sensor  Faraday effect  polarimetric sensor  |
The paper presents the measurement system of a fiber optic polarimetric current sensor using the Faraday effect. The system is powered by 1550 nm light, and the magneto-sensitive element is a fiber optic coil made of single-mode fiber. The analysis of the influence of disturbances on the sensor's operation in the basic configuration was made. The change in the parameters of the light wave depending on the induced damaging birefringence of the linear and circular birefringence resulting from the Faraday effect is presented.
The results of measurements of sinusoidal alternating currents with mains frequency in the amplitude range from 100 A to 1000 A are presented. Metrological analysis of the sensor was made. The sensitivity of the measurement system was determined and the uncertainty of the current measurement was estimated using a fiber optic polarimetric sensor, the value of which does not exceed 2%.