The New Sensing Fibre for Application in Optical Fibre Current Sensor
K. Barczak a, D. Dorosz b and J. Dorosz b
a Institute of Physics, Silesian University of Technology, Krzywoustego 2, 44-100 Gliwice, Poland
b Department of Optical Radiation, Białystok Technical University, Wiejska 45, 15-950 Białystok, Poland
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The present paper deals with investigations concerning optical fibre current sensors. They are mainly applied in measurements of the intensity of the electric current in the power lines as socalled optical transformers of the electrical current. The most important advantages of fibre current sensors are: safety of service, insulating power as well as their insensitiveness to electromagnetic interference. The investigations were concentrated on designing of adequate sensing fibre, and particularly on the choice of an adequate kind of glass, of which this fibre could be made. Besides, also the head of the fibre current sensor was designed, basing on the suggested and produced sensing fibre. The paper presents the results of magnetooptic tests of the glass and the sensing fibre.
DOI: 10.12693/APhysPolA.114.A-3
PACS numbers: 78.20.Ls, 42.81.Gs, 42.81.Pa, 42.81.Qb, 42.81.Gs