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A Static-Sample Magnetometer for Characterizing Weak Magnetic Materials
In this article, a static-sample magnetometer is presented to measure the relative permeability of weakly magnetic materials. The method consists of scanning the magnetic field inside a dipole magnet by using an NMR teslameter to measure the perturbation of a test specimen on the externally applied...
Autores principales: | , , , , |
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Lenguaje: | eng |
Publicado: |
2021
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1109/tim.2020.3041823 http://cds.cern.ch/record/2808734 |
_version_ | 1780973112649580544 |
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author | Arpaia, Pasquale Buzio, Marco Parrella, Alessandro Pentella, Mariano Ramos, Pedro M |
author_facet | Arpaia, Pasquale Buzio, Marco Parrella, Alessandro Pentella, Mariano Ramos, Pedro M |
author_sort | Arpaia, Pasquale |
collection | CERN |
description | In this article, a static-sample magnetometer is presented to measure the relative permeability of weakly magnetic
materials. The method consists of scanning the magnetic field
inside a dipole magnet by using an NMR teslameter to measure
the perturbation of a test specimen on the externally applied field.
Then, an inverse problem is used to compute the specimen’s
relative permeability. As a case study, the measurement of
three different materials with different shapes and dimensions
is carried out. The method was validated by measuring the same
material by vibrating sample magnetometry as proposed by the
standard ASTM A342/A342M-14. The expanded measurement
uncertainty of the relative permeability, evaluated by Monte
Carlo simulations, is about $10^{-4}$ for all the cases, with a level of
confidence of 95%. |
id | cern-2808734 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2021 |
record_format | invenio |
spelling | cern-28087342022-05-06T21:17:38Zdoi:10.1109/tim.2020.3041823http://cds.cern.ch/record/2808734engArpaia, PasqualeBuzio, MarcoParrella, AlessandroPentella, MarianoRamos, Pedro MA Static-Sample Magnetometer for Characterizing Weak Magnetic MaterialsDetectors and Experimental TechniquesIn this article, a static-sample magnetometer is presented to measure the relative permeability of weakly magnetic materials. The method consists of scanning the magnetic field inside a dipole magnet by using an NMR teslameter to measure the perturbation of a test specimen on the externally applied field. Then, an inverse problem is used to compute the specimen’s relative permeability. As a case study, the measurement of three different materials with different shapes and dimensions is carried out. The method was validated by measuring the same material by vibrating sample magnetometry as proposed by the standard ASTM A342/A342M-14. The expanded measurement uncertainty of the relative permeability, evaluated by Monte Carlo simulations, is about $10^{-4}$ for all the cases, with a level of confidence of 95%.oai:cds.cern.ch:28087342021 |
spellingShingle | Detectors and Experimental Techniques Arpaia, Pasquale Buzio, Marco Parrella, Alessandro Pentella, Mariano Ramos, Pedro M A Static-Sample Magnetometer for Characterizing Weak Magnetic Materials |
title | A Static-Sample Magnetometer for Characterizing Weak Magnetic Materials |
title_full | A Static-Sample Magnetometer for Characterizing Weak Magnetic Materials |
title_fullStr | A Static-Sample Magnetometer for Characterizing Weak Magnetic Materials |
title_full_unstemmed | A Static-Sample Magnetometer for Characterizing Weak Magnetic Materials |
title_short | A Static-Sample Magnetometer for Characterizing Weak Magnetic Materials |
title_sort | static-sample magnetometer for characterizing weak magnetic materials |
topic | Detectors and Experimental Techniques |
url | https://dx.doi.org/10.1109/tim.2020.3041823 http://cds.cern.ch/record/2808734 |
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