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[64930] Artykuł: Measurement of impulse current using polarimetric fiber optic sensorCzasopismo: Proceedings of SPIE Tom: 10445, Strony: 1-7ISSN: 1996-756X ISBN: 978-1-5106-1355-3 Wydawca: SPIE-INT SOC OPTICAL ENGINEERING, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA Opublikowano: Sierpień 2017 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  Faraday effect  impulse current  spun optical fiber  |
In the paper the polarimetric current sensing solution used for measurements of high amplitude currents and short durations is presented. This type of sensor does not introduce additional resistance and inductance into the circuit, which is a desirable phenomenon in this type of measurement. The magneto element is a fiber optic coil made of spun fiber optic. The fiber in which the core is twisted around its axis is characterized by a small effect of interfering magnitudes, ie mechanical vibrations and pressure changes on the polarimeter. The presented polarimetric current sensor is completely fiber optic.
Experimental results of a proposed sensor construction solution operating at 1550 nm and methods of elimination of influence values on the fiber optic current sensor were presented.
The sensor was used to measure the impulse current. The generated current pulses are characterized by a duration of 23 mu s and amplitudes ranging from 1 to 3.5 kA. The currents in the discharge circuit are shown. The measurement uncertainty of the amplitude of the electric current in the range of measured impulses was determined and estimated to be no more than 2%.