Publication detail

Contribution to problem of current magnetizing sources calibration in NDT

Rez Jiří

Original Title

Contribution to problem of current magnetizing sources calibration in NDT

English Title

Contribution to problem of current magnetizing sources calibration in NDT

Type

conference paper

Language

en

Original Abstract

Magnetising current sources used in NDT based on the magnetic particle methods have to guarantee magnetizing of the tested product into magnetic status when leakage fluxes rise above the crack or another macro defect. As known magnetising the ferromagnetic material beyond the maximum permeability fulfils the condition. For some technical materials it is deemed necessary to reach a magnetic field intensity 4 up to 5 kA/m by a magnetising source. Determination of this status is usually carried out by a conversion into a required magnetizing current quantity for a given configuration of a testing device. For this reason the magnetizing source is adjustable and the current quantity is indicated by a measuring instrument with an analogue or a digital display.

English abstract

Magnetising current sources used in NDT based on the magnetic particle methods have to guarantee magnetizing of the tested product into magnetic status when leakage fluxes rise above the crack or another macro defect. As known magnetising the ferromagnetic material beyond the maximum permeability fulfils the condition. For some technical materials it is deemed necessary to reach a magnetic field intensity 4 up to 5 kA/m by a magnetising source. Determination of this status is usually carried out by a conversion into a required magnetizing current quantity for a given configuration of a testing device. For this reason the magnetizing source is adjustable and the current quantity is indicated by a measuring instrument with an analogue or a digital display.

Keywords

Non destructive testing, magnetic particle test, current source, calibration

RIV year

2005

Released

25.10.2005

Publisher

PTBNiDT Warszawa

Location

Zakopane. Polsko

ISBN

83-87982-61-X

Book

34 Krajowa konferencja badaň nieniszacych

Pages from

157

Pages to

162

Pages count

6

BibTex


@inproceedings{BUT15840,
  author="Jiří {Rez}",
  title="Contribution to problem of current magnetizing sources calibration in NDT",
  annote="Magnetising current sources used in NDT based on the magnetic particle methods have to guarantee magnetizing of the tested product into magnetic status when leakage fluxes rise above the crack or another macro defect. As known magnetising the ferromagnetic material beyond the maximum permeability fulfils the condition. For some technical materials it is deemed necessary to reach a magnetic field intensity 4 up to 5 kA/m by a magnetising source. Determination of this status is usually carried out by a conversion into a required magnetizing current quantity for a given configuration of a testing device. For this reason the magnetizing source is adjustable and the current quantity is indicated by a measuring instrument with an analogue or a digital display.",
  address="PTBNiDT Warszawa",
  booktitle="34 Krajowa konferencja badaň nieniszacych",
  chapter="15840",
  institution="PTBNiDT Warszawa",
  year="2005",
  month="october",
  pages="157",
  publisher="PTBNiDT Warszawa",
  type="conference paper"
}