skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Steel characteristics measurement system using Barkhausen jump sum rate and magnetic field intensity and method of using same

Abstract

A steel hardness measurement system and method of using same are provided for measuring at least one mechanical or magnetic characteristic of a ferromagnetic sample as a function of at least one magnetic characteristic of the sample. A magnetic field generator subjects the sample to a variable external magnetic field. The magnetic field intensity of the magnetic field generated by the magnetic field generating means is measured and a signal sensor is provided for measuring Barkhausen signals from the sample when the sample is subjected to the external magnetic field. A signal processing unit calculates a jump sum rate first moment as a function of the Barkhausen signals measured by the signal sensor and the magnetic field intensity, and for determining the at least one mechanical or magnetic characteristic as a function of the jump sum rate first moment.

Inventors:
 [1];  [2];  [3]
  1. (Omer, IL)
  2. (Derwood, MD)
  3. (New Carrollton, MD)
Publication Date:
Research Org.:
American Iron and Steel Institute (Washington, DC)
OSTI Identifier:
870897
Patent Number(s):
US 5619135
Assignee:
American Iron and Steel Institute (Washington, DC) IDO
DOE Contract Number:  
FC07-93ID13205
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
steel; characteristics; measurement; barkhausen; jump; rate; magnetic; field; intensity; method; hardness; provided; measuring; mechanical; characteristic; ferromagnetic; sample; function; generator; subjects; variable; external; generated; generating; means; measured; signal; sensor; signals; subjected; processing; unit; calculates; moment; determining; processing unit; field generating; generating means; signal processing; magnetic field; field intensity; field generated; external magnetic; signal process; field generator; magnetic characteristic; /324/73/702/

Citation Formats

Kohn, Gabriel, Hicho, George, and Swartzendruber, Lydon. Steel characteristics measurement system using Barkhausen jump sum rate and magnetic field intensity and method of using same. United States: N. p., 1997. Web.
Kohn, Gabriel, Hicho, George, & Swartzendruber, Lydon. Steel characteristics measurement system using Barkhausen jump sum rate and magnetic field intensity and method of using same. United States.
Kohn, Gabriel, Hicho, George, and Swartzendruber, Lydon. Wed . "Steel characteristics measurement system using Barkhausen jump sum rate and magnetic field intensity and method of using same". United States. https://www.osti.gov/servlets/purl/870897.
@article{osti_870897,
title = {Steel characteristics measurement system using Barkhausen jump sum rate and magnetic field intensity and method of using same},
author = {Kohn, Gabriel and Hicho, George and Swartzendruber, Lydon},
abstractNote = {A steel hardness measurement system and method of using same are provided for measuring at least one mechanical or magnetic characteristic of a ferromagnetic sample as a function of at least one magnetic characteristic of the sample. A magnetic field generator subjects the sample to a variable external magnetic field. The magnetic field intensity of the magnetic field generated by the magnetic field generating means is measured and a signal sensor is provided for measuring Barkhausen signals from the sample when the sample is subjected to the external magnetic field. A signal processing unit calculates a jump sum rate first moment as a function of the Barkhausen signals measured by the signal sensor and the magnetic field intensity, and for determining the at least one mechanical or magnetic characteristic as a function of the jump sum rate first moment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

Patent:

Save / Share: