Design and Development of a Low-Cost Optical Current Sensor

Sensors

Joseba Zubia¹  Luciano Casado²  Gotzon Aldabaldetreku¹  Alfonso Montero²  Eneko Zubia² 

[1] Department of Communications Engineering, ETSI de Bilbao, University of the Basque Country (UPV/EHU), Alameda de Urquijo s/n, Bilbao 48013, Spain; E-Mails:;Smart Grid, Derio Bidea 28, Zabalondo Industrialdea, Mungia 48100, Spain; E-Mails:

关键词: Faraday rotation;    plastic optical fibre;    optical fibre sensors;    current sensor;   

DOI  :  10.3390/s131013584

来源: mdpi

【 摘 要 】

In this paper we demonstrate the design of a low-cost optical current sensor. The sensor principle is the Faraday rotation of a light beam through a magneto-optical material, SF2, when a magnetic field is present. The prototype has a high sensitivity and a high linearity for currents ranging from 0 up to 800 A. The error of the optical fibre sensor is smaller than 1% for electric currents over 175 A.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.