Magneto-optic current sensor
Abstract
An optical current transducer configured to sense current in the conductor is disclosed. The optical current transducer includes a light source and a polarizer that generates linearly polarized light received from a the light source. The light is communicated to a magneto-optic garnet that includes, among other elements, bismuth, iron and oxygen and is coupled to the conductor. The magneto-optic garnet is configured to rotate the polarization of the linearly polarized light received from the polarizer. The optical current transducer also includes an analyzer in optical communication with the magneto-optic garnet. The analyzer detects the rotation of the linearly polarized light caused by the magneto-optic garnet.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Chicago, IL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174529
- Patent Number(s):
- 6630819
- Application Number:
- 09/790,961
- Assignee:
- University Of Chicago
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- W-31-109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 24 POWER TRANSMISSION AND DISTRIBUTION
Citation Formats
Lanagan, Michael T., Valsko-Vlasov, Vitalii K., Fisher, Brandon L., and Welp, Ulrich. Magneto-optic current sensor. United States: N. p., 2003.
Web.
Lanagan, Michael T., Valsko-Vlasov, Vitalii K., Fisher, Brandon L., & Welp, Ulrich. Magneto-optic current sensor. United States.
Lanagan, Michael T., Valsko-Vlasov, Vitalii K., Fisher, Brandon L., and Welp, Ulrich. Tue .
"Magneto-optic current sensor". United States. https://www.osti.gov/servlets/purl/1174529.
@article{osti_1174529,
title = {Magneto-optic current sensor},
author = {Lanagan, Michael T. and Valsko-Vlasov, Vitalii K. and Fisher, Brandon L. and Welp, Ulrich},
abstractNote = {An optical current transducer configured to sense current in the conductor is disclosed. The optical current transducer includes a light source and a polarizer that generates linearly polarized light received from a the light source. The light is communicated to a magneto-optic garnet that includes, among other elements, bismuth, iron and oxygen and is coupled to the conductor. The magneto-optic garnet is configured to rotate the polarization of the linearly polarized light received from the polarizer. The optical current transducer also includes an analyzer in optical communication with the magneto-optic garnet. The analyzer detects the rotation of the linearly polarized light caused by the magneto-optic garnet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 07 00:00:00 EDT 2003},
month = {Tue Oct 07 00:00:00 EDT 2003}
}
Works referenced in this record:
Optical current transducer with bulk type Bi12SiO20 faraday sensor for power systems
journal, January 1997
- Katsukawa, Hiroyuki; Yokoi, Seigo
- Optical Review, Vol. 4, Issue 1
Fiber optic current sensor calibration
conference, January 2001
- Blake, J.
- 2001 IEEE/PES Transmission and Distribution Conference and Exposition. Developing New Perspectives (Cat. No.01CH37294)