Design and Development of a Magneto-Optic Sensor for Magnetic Field Measurements

Design and Development of a Magneto-Optic Sensor for Magnetic Field Measurements

A magneto-optic sensor is developed using a Terbium Doped Glass (TDG) element as a Faraday rotation sensor and optical fiber as light transmitting and receiving medium. Online LabView based application software is developed to process the sensor output. The system is used to sense the magnetic field...

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Bibliographic Details
Main Authors: Sarbani CHAKRABORTY, Sarita KUMARI
Format: Article
Language:English
Published: IFSA Publishing, S.L. 2015-01-01
Series:Sensors & Transducers
Subjects:
Current measurement
Faraday effect
Magnetic field measurement
Magnetooptic devices
Magnetic sensors
Optical imaging
Polarimetry
Stokes parameters.
Online Access:http://www.sensorsportal.com/HTML/DIGEST/january_2015/Vol_184/P_RP_0192.pdf
Description
Summary:A magneto-optic sensor is developed using a Terbium Doped Glass (TDG) element as a Faraday rotation sensor and optical fiber as light transmitting and receiving medium. Online LabView based application software is developed to process the sensor output. The system is used to sense the magnetic field of a DC motor field winding in industrial environment. The sensor output is compared with the magnetic flux density variation obtained with a calibrated Hall Magnetic sensor (Gauss Meter). A linear variation of sensor output over wide range of current passing through the field winding is obtained. Further the results show an improved sensitivity of magneto-optic sensor over the Hall sensor.
ISSN:2306-8515
1726-5479

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