发明名称 DEVICE FOR LOCAL MEASUREMENT OF FERROMAGNETIC PHASE OF AUSTENITIC STEEL
摘要 FIELD: measurement technology, nondestructive test of quality of materials. SUBSTANCE: device is designed for local measurement of ferromagnetic phase of austenitic steels during casting, in billets and finished articles, in welds, surfacings, etc. It is manufactured in the form of transducer, has handle and protective nonmagnetic case housing permanent magnet. First pair of magnetosensitive elements is placed in plane of neutral section of magnet on its opposite sides orthogonally to magnetization axis of magnet, one uniaxially to another. Second pair of elements is positioned at angle with regard to magnetization axis of magnet. Magnetosensitive elements are connected to electric measurement device via switches by diagrams of gradiometer and meter measuring field. EFFECT: enhanced accuracy and authenticity of local measurements with simultaneous increase of its versatility and efficiency. 1 cl, 1 dwg
申请公布号 RU2130609(C1) 申请公布日期 1999.05.20
申请号 RU19970113301 申请日期 1997.07.31
申请人 INSTITUT FIZIKI METALLOV URO RAN;INSTITUT MASHINOVEDENIJA URO RAN 发明人 PUDOV V.I.;RIGMANT M.B.;GORKUNOV EH.S.
分类号 G01N27/87;G01N27/72;(IPC1-7):G01N27/87 主分类号 G01N27/87
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