Optical current monitor
Abstract
An optical current monitor for detecting a current traveling through conductive material. The optical current monitor comprises a light source for emitting light at an output level; a lens configured to receive the light; Faraday material positioned near the conductive material and configured to receive light that has passed through the lens, thereby producing rotated light; a polarizer configured to polarize the rotated light; a photodetector configured to receive the rotated light and output a signal as a function of the rotated light; and a feedback system. The feedback system is configured to receive the signal from the photodetector and modify the output level of the light source based on the signal so that the signal remains at a reference level when the current is not traveling through the conductive material.
- Inventors:
- Issue Date:
- Research Org.:
- Kansas City Plant (KCP), Kansas City, MO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1840313
- Patent Number(s):
- 11079412
- Application Number:
- 16/244,317
- Assignee:
- Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
- DOE Contract Number:
- NA0002839
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 01/10/2019
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Laughlin, Daric Gray, and Marchman, Christopher Scott. Optical current monitor. United States: N. p., 2021.
Web.
Laughlin, Daric Gray, & Marchman, Christopher Scott. Optical current monitor. United States.
Laughlin, Daric Gray, and Marchman, Christopher Scott. Tue .
"Optical current monitor". United States. https://www.osti.gov/servlets/purl/1840313.
@article{osti_1840313,
title = {Optical current monitor},
author = {Laughlin, Daric Gray and Marchman, Christopher Scott},
abstractNote = {An optical current monitor for detecting a current traveling through conductive material. The optical current monitor comprises a light source for emitting light at an output level; a lens configured to receive the light; Faraday material positioned near the conductive material and configured to receive light that has passed through the lens, thereby producing rotated light; a polarizer configured to polarize the rotated light; a photodetector configured to receive the rotated light and output a signal as a function of the rotated light; and a feedback system. The feedback system is configured to receive the signal from the photodetector and modify the output level of the light source based on the signal so that the signal remains at a reference level when the current is not traveling through the conductive material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {8}
}
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