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Title: Distributed sensing of electromagnetic components using optical fiber based methods

Abstract

An OFDR based fiber-optics sensor for distributed real-time temperature rise monitoring of a transformer in operation has been disclosed. The fiber-optic sensor provides an effective solution to monitoring the physical structures of the transformer core, as well as accurately detecting the non-uniform temperature distribution inside the transformer, and thus provides innovative feedback to the transformer design by minimizing the core losses. Additionally, the method may be responsive to the presence of magnetic and electric fields, as well as responsive to various chemical species. The method allows novel approaches to real-time asset monitoring of power transformers while operational.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Carnegie Mellon Univ., Pittsburgh, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1840277
Patent Number(s):
11067458
Application Number:
16/123,786
Assignee:
Carnegie Mellon University (Pittsburgh, PA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
DOE Contract Number:  
EE0007464
Resource Type:
Patent
Resource Relation:
Patent File Date: 09/06/2018
Country of Publication:
United States
Language:
English

Citation Formats

Ohodnicki, Paul R., McHenry, Michael E., Leary, Alex M., Beddingfield, Richard B., and Buric, Michael Paul. Distributed sensing of electromagnetic components using optical fiber based methods. United States: N. p., 2021. Web.
Ohodnicki, Paul R., McHenry, Michael E., Leary, Alex M., Beddingfield, Richard B., & Buric, Michael Paul. Distributed sensing of electromagnetic components using optical fiber based methods. United States.
Ohodnicki, Paul R., McHenry, Michael E., Leary, Alex M., Beddingfield, Richard B., and Buric, Michael Paul. Tue . "Distributed sensing of electromagnetic components using optical fiber based methods". United States. https://www.osti.gov/servlets/purl/1840277.
@article{osti_1840277,
title = {Distributed sensing of electromagnetic components using optical fiber based methods},
author = {Ohodnicki, Paul R. and McHenry, Michael E. and Leary, Alex M. and Beddingfield, Richard B. and Buric, Michael Paul},
abstractNote = {An OFDR based fiber-optics sensor for distributed real-time temperature rise monitoring of a transformer in operation has been disclosed. The fiber-optic sensor provides an effective solution to monitoring the physical structures of the transformer core, as well as accurately detecting the non-uniform temperature distribution inside the transformer, and thus provides innovative feedback to the transformer design by minimizing the core losses. Additionally, the method may be responsive to the presence of magnetic and electric fields, as well as responsive to various chemical species. The method allows novel approaches to real-time asset monitoring of power transformers while operational.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {7}
}

Works referenced in this record:

DTS measurement of HV cable temperature profile
patent, November 2004


Attenuation correction for distributed temperature sensors using anti-Stokes to Rayleigh ration
patent-application, October 2015


Temperature measurement system and temperature measurement method
patent, January 2014


Distributed optical fiber sensor for sensing stress state
patent-application, March 2018