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Title: Demagnetization using a determined estimated magnetic state

Abstract

A method for demagnetizing comprising positioning a core within the electromagnetic field generated by a first winding until the generated first electrical current is not substantially increasing, thereby determining a saturation current. A second voltage, having the opposite polarity, is then applied across the first winding until the generated second electrical current is approximately equal to the magnitude of the determined saturation current. The maximum magnetic flux within the core is then determined using the voltage across said first winding and the second current. A third voltage, having the opposite polarity, is then applied across the first winding until the core has a magnetic flux equal to approximately half of the determined maximum magnetic flux within the core.

Inventors:
;
Issue Date:
Research Org.:
Bonneville Power Administration, Portland, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1167201
Patent Number(s):
8,934,210
Application Number:
13/535,637
Assignee:
U.S. Department of Energy (Washington, DC)
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jun 28
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Denis, Ronald J, and Makowski, Nathanael J. Demagnetization using a determined estimated magnetic state. United States: N. p., 2015. Web.
Denis, Ronald J, & Makowski, Nathanael J. Demagnetization using a determined estimated magnetic state. United States.
Denis, Ronald J, and Makowski, Nathanael J. Tue . "Demagnetization using a determined estimated magnetic state". United States. https://www.osti.gov/servlets/purl/1167201.
@article{osti_1167201,
title = {Demagnetization using a determined estimated magnetic state},
author = {Denis, Ronald J and Makowski, Nathanael J},
abstractNote = {A method for demagnetizing comprising positioning a core within the electromagnetic field generated by a first winding until the generated first electrical current is not substantially increasing, thereby determining a saturation current. A second voltage, having the opposite polarity, is then applied across the first winding until the generated second electrical current is approximately equal to the magnitude of the determined saturation current. The maximum magnetic flux within the core is then determined using the voltage across said first winding and the second current. A third voltage, having the opposite polarity, is then applied across the first winding until the core has a magnetic flux equal to approximately half of the determined maximum magnetic flux within the core.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {1}
}

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