"Contribution to problem of current magnetizing sources calibration in NDT"@en . "516326" . "RIV/00216305:26220/05:PU52766!RIV06-GA0-26220___" . "Contribution to problem of current magnetizing sources calibration in NDT"@en . "Rez, Ji\u0159\u00ED" . "P(GA102/03/0241)" . . . . . "1"^^ . . "Zakopane" . "1"^^ . "34 Krajowa konferencja bada\u0148 nieniszacych" . "6"^^ . "Contribution to problem of current magnetizing sources calibration in NDT" . "P\u0159\u00EDsp\u011Bvek k probl\u00E9mu kalibrace proudov\u00FDch magnetiza\u010Dn\u00EDch zdroj\u016F v NDT"@cs . . . "2005-10-25+02:00"^^ . "RIV/00216305:26220/05:PU52766" . . "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 coonversion 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."@en . . "P\u0159\u00EDsp\u011Bvek k probl\u00E9mu kalibrace proudov\u00FDch magnetiza\u010Dn\u00EDch zdroj\u016F v NDT"@cs . "Zdroje magnetovac\u00EDho proudu u\u017E\u00EDvan\u00E9 v NDT zaji\u0161\u0165uj\u00ED magnetizaci testovan\u00E9ho objektu, p\u0159i\u010Dem\u017E doch\u00E1z\u00ED k \u00FAniku magnetick\u00E9ho toku nad prasklinami a jin\u00FDmi makroskopick\u00FDmi defekty. K tomu je vhodn\u00E1 magnetizace feromagnetick\u00FDch materi\u00E1l\u016F nad hranic\u00ED nasycen\u00ED. Pro n\u011Bkter\u00E9 technick\u00E9 materi\u00E1ly se ukazuje nezbytn\u00E9 dos\u00E1hnout magnetick\u00E9ho pole s intenzitou 4 a\u017E 5 kA/m. Hodnota intenzity se nastavuje nep\u0159\u00EDmo pomoc\u00ED velikosti magnetiza\u010Dn\u00EDho proudu pro danou konfiguraci m\u011B\u0159ic\u00EDho za\u0159\u00EDzen\u00ED. Z tohoto d\u016Fvodu jsou magneetiza\u010Dn\u00ED zdroje nastaviteln\u00E9 a hodnota proudu je indikov\u00E1na analogov\u00FDm nebo digit\u00E1ln\u00EDm m\u011B\u0159idlem."@cs . . . "Non destructive testing, magnetic particle test, current source, calibration"@en . "Zakopane. Polsko" . "83-87982-61-X" . . "26220" . . "Contribution to problem of current magnetizing sources calibration in NDT" . "157-162" . . "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 coonversion 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." . "[FCF8FB11F7EB]" . . . . "PTBNiDT Warszawa" .