NDLI: Hybrid Opto-Mechanical Current Sensor Based on a Mach-Zehnder Fiber Interferometer

Content Provider	IEEE Xplore Digital Library
Author	Melo Bastos, A. Mendonca Menezes, J.W. Kamshilin, A.A. Bezerra Sombra, A.S.
Copyright Year	2001
Abstract	In this paper, a new optical sensor based on a Mach-Zehnder interferometer, constructed with single mode optical fibers operating at 1.55 μm has been proposed and studied. The current sensing is obtained by mechanical perturbation applied to one of the single mode fiber, which constitutes the interferometer. This disturbance leads to an optical interference detected in the output of the interferometer and it is proportional to the magnitude of the current in the driver, measured with a reference sensor. The sensor has been tested with ac (60 Hz) up to 110 A. The obtained calibration curve presents a sensitivity between 0.8 and 1.54 mV/A. With a variation on the experimental arrangement, the sensor can be used in the monitoring of low and high amplitude currents. This new sensor can be efficiently used for monitoring the alternating electrical current in both small and large electric power suppliers and consumers.
Sponsorship	IEEE Sensors Council
Starting Page	1056
Ending Page	1060
Page Count	5
File Size	881915
File Format	PDF
ISSN	1530437X
Volume Number	14
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fiber sensors Optical fibers Magnetic sensors Optical interferometry interferometer Optical sensor Mach-Zehnder
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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