Title :
In-line Sagnac interferometer current sensor
Author :
Blake, J. ; Tantaswadi, P. ; de Carvalho, R.T.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
1/1/1996 12:00:00 AM
Abstract :
The authors demonstrate for the first time a near shot noise limited in-line Sagnac interferometer current sensor. It is shown to have a number of advantages over the optical current sensors based on polarimetric Faraday and Faraday/Sagnac loop interferometer topologies, including lower sensitivity to environmental disturbances, less demanding optical components, and easy installation. Its application to power system measurements is also detailed
Keywords :
electric current measurement; fibre optic sensors; light interferometers; light interferometry; power system measurement; shot noise; current measurements; environmental disturbances; in-line Sagnac interferometer current sensor; installation; optical components; optical current sensors; power system; sensitivity; Birefringence; Faraday effect; Magnetic sensors; Optical fiber polarization; Optical interferometry; Optical noise; Optical sensors; Sagnac interferometers; Topology; Wire;
Journal_Title :
Power Delivery, IEEE Transactions on
