An optically-interrogated Rogowski coil for passive, multiplexable current measurement

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Orr, Philip and Niewczas, Pawel and Booth, Campbell and Fusiek, Grzegorz and Dysko, Adam and Kawano, Fumio and Nishida, Tomonori and Beaumont, Phil (2013) An optically-interrogated Rogowski coil for passive, multiplexable current measurement. IEEE Sensors Journal, 13 (6). pp. 2053-2054. ISSN 1530-437X (https://doi.org/10.1109/JSEN.2013.2252614)

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Abstract

We report on the design and implementation of a novel hybrid electro-optical sensor for electric current. An all-fibre transducer is utilised to passively interrogate an air-core coil via a low-voltage piezoelectric multilayer. Peak Bragg reflections are strain-tuned by the Rogowski emf, allowing transducer interrogation and primary current reconstruction to be performed remotely and without active electronics at the sensor. The preliminary embodiment demonstrates long-distance, passive measurement of current for metering and protection applications, and retains the fibre transducer's capability for serial multiplexing.

ORCID iDs

Orr, Philip, Niewczas, Pawel ORCID logoORCID: https://orcid.org/0000-0003-3291-1725, Booth, Campbell ORCID logoORCID: https://orcid.org/0000-0003-3869-4477, Fusiek, Grzegorz ORCID logoORCID: https://orcid.org/0000-0002-3361-7803, Dysko, Adam ORCID logoORCID: https://orcid.org/0000-0002-3658-7566, Kawano, Fumio, Nishida, Tomonori and Beaumont, Phil;
CORE (COnnecting REpositories)