Neporušno določevanje stanja materiala iz magnetnega Barkhausnovega šuma = [Non-destructive detecting of state of material from magnetic Barkhausen noise] : doktorsko delo
Pečnik, Boštjan, 1972-
Magnetni Barkhausnov efekt je pojav, ki nastane med magnetenjem feromegnetnih materialov in je povezan z gibanjem magnetnih domen pod vplivom izmeničnega magnetnega polja. Prikazani so različni ...vplivi mehanskih in/ali toplotnih obdelav materiala na senzorne enote in magnetilne parametre. Za raziskavo smo uporabili senzorno enoto z zunanjo merilno tuljavo večjih dimenzij, ter kompaktni senzorni enoti z integrirano merilno tuljavo in z integriranim feritnim jedrom. V nalogi je predstavljeno splošno konstrukcijsko jeklo z oznako Fe360-B po ISO standardu v mehkem in utrjenem stanju, z različno stopnjo hladne deformacije, ter ogljikovo jeklo za poboljšanje C45E v funkcionalnem okolju. Rezultati raziskav so razvoj kompaktnih senzornih enot, optimalni izbor magnetilnih parametrov, izdelava krivulj umerjanja in korelacijskih koeficientov med iskanimi mehanskimi lastnostmi feromagnetnega materiala ter značilnimi parametri Barkhausnovega šuma.
Type of material - dissertation
Publication and manufacture - Ljubljana : [B. Pečnik], 2007
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