NDLI: A spherical electro-optic high-voltage sensor

Content Provider	IEEE Xplore Digital Library
Author	McKinley, M.C. Smith, C.V. Nunnally, W.C. Magnusson, R. Black, T.D.
Copyright Year	1989
Description	Author affiliation: University of Texas at Arlington (McKinley, M.C.)
Abstract	A spherical electro-optic (EO) crystal is introduced for photonic measurement of pulsed high-voltage fields. A spherical shape is used in order to reduce electric field gradients in the vicinity of the sensor. The sensor is pure dielectric and is interrogated remotely using a laser. The sensor does not require the connection of any conducting components, which results in the highest electrical isolation. The spherical nature of the crystal coupled with the incident laser beam, and crossed polarizers (intensity modulation scheme), automatically produces interference figures. The fringes move with the application of an electric field applied to the EO crystal, and a photodetector senses the pattern movement. The sensor can be made small (e.g. < 3mm diam.) resulting in a large AC bandwidth, (e.g. > 4 GHz). Proof of principle results are presented for the use of a solid sphere (/spl tilde/3 mm diam.) of LiNbO/sub 3/ for measuring pulsed electric and voltage fields.
Starting Page	380
Ending Page	383
File Size	908132
Page Count	4
File Format	PDF
DOI	10.1109/PPC.1989.767503
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-06-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrooptic devices Optical coupling Pulse measurements Sensor phenomena and characterization Optical sensors Dielectric measurements EMP radiation effects Voltage Measurement techniques Geometrical optics
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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