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Vol. 93, Issue 6, June 2008, pp. 21-28




Remote Measurement of Electric Current Using Magneto-Optic Technique


Mahfoozur Rehman1, Basem Abdul Jalil2, Prof. Zaid Abdullah3

1Professor Madhya,School of Electric and Electronics Engineering,

Engineering Campus, Universiti Sains Malaysia

14300-Nibong Tebal, Pinang-Malaysia,

Tel: +6057179536, E-mail: mahfoozur_rehman@hotmail.com

2Research Scholar, School of Electric and Electronic Engineering, Engineering Campus, USM

3Professor and Dean, School of Electric and Electronic Engineering, Engineering Campus, USM

 Tel:+6045996000, E-mail: mza@eng.usm.my



Received:  28 May 2008   /Accepted: 24 June 2008   /Published: 30 June 2008


Abstract: The paper deals with the development of an interesting technique which can help in the remote measurement of electrical current, using magnetic and optical devices. Major advantage of the presented technique is the isolation provided by Hall sensor as well as by the optical devices of measuring system from the actual power circuit. It will help in the repair of measuring system without closing the main circuit which is a crucial requirement of supply system. Output of the optical receiver is interfaced with the microcontroller to display the current as well as to instill intelligence to the system. It has been successfully used for the measurement of currents up to 60 A  and relationship between current under measurement and output of the system is appreciably linear.


Keywords: Hall effect sensor, Fiber optic sensor, Remote measurement, Measurment of current, Microcontroller based measurement


 Acrobat reader logo Click <here> or title of paper to download the full pages article (528 K)





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