Next Article in Journal
A Thermoelectric Generator Using Porous Si Thermal Isolation
Next Article in Special Issue
An InN/InGaN Quantum Dot Electrochemical Biosensor for Clinical Diagnosis
Previous Article in Journal
Silicon Carbide-Based Hydrogen Gas Sensors for High-Temperature Applications
Previous Article in Special Issue
Taking Advantage of Selective Change Driven Processing for 3D Scanning
Sensors 2013, 13(10), 13584-13595; doi:10.3390/s131013584

Design and Development of a Low-Cost Optical Current Sensor

1,* , 2
1 Department of Communications Engineering, ETSI de Bilbao, University of the Basque Country (UPV/EHU), Alameda de Urquijo s/n, Bilbao 48013, Spain 2 Smart Grid, Derio Bidea 28, Zabalondo Industrialdea, Mungia 48100, Spain
* Author to whom correspondence should be addressed.
Received: 23 July 2013 / Revised: 22 September 2013 / Accepted: 30 September 2013 / Published: 10 October 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2013)
View Full-Text   |   Download PDF [615 KB, uploaded 21 June 2014]   |   Browse Figures


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.
Keywords: Faraday rotation; plastic optical fibre; optical fibre sensors; current sensor Faraday rotation; plastic optical fibre; optical fibre sensors; current sensor
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
MDPI and ACS Style

Zubia, J.; Casado, L.; Aldabaldetreku, G.; Montero, A.; Zubia, E.; Durana, G. Design and Development of a Low-Cost Optical Current Sensor. Sensors 2013, 13, 13584-13595.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here


Cited By

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert