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Title: 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):
6,630,819
Application Number:
09/790,961
Assignee:
University Of Chicago OSTI
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 = {2003},
month = {10}
}

Patent:

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