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:
-
- Omer, IL
- Derwood, MD
- New Carrollton, MD
- Issue Date:
- Research Org.:
- American Iron and Steel Institute, Washington, DC (United States)
- OSTI Identifier:
- 870897
- Patent Number(s):
- 5619135
- Assignee:
- American Iron and Steel Institute (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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 = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
Works referenced in this record:
Nondestructive evaluation of ferromagnetic materials by a ?magnetometer like? experimental arrangement
journal, June 1987
- Kaplan, B. Z.; Rabinovici, R.
- Journal of Nondestructive Evaluation, Vol. 6, Issue 2