TY - JOUR
T1 - An optically-interrogated Rogowski coil for passive, multiplexable current measurement
AU - Orr, Philip
AU - Niewczas, Pawel
AU - Booth, Campbell
AU - Fusiek, Grzegorz
AU - Dysko, Adam
AU - Kawano, Fumio
AU - Nishida, Tomonori
AU - Beaumont, Phil
PY - 2013/3
Y1 - 2013/3
N2 - 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.
AB - 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.
KW - fibre bragg grating
KW - optical current sensor
KW - Rogowski coil
KW - power system instrumentation
UR - http://www.scopus.com/inward/record.url?scp=84876787606&partnerID=8YFLogxK
U2 - 10.1109/JSEN.2013.2252614
DO - 10.1109/JSEN.2013.2252614
M3 - Article
SN - 1530-437X
VL - 13
SP - 2053
EP - 2054
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 6
ER -