DynoMag 交流磁化量測同相異向磁化率

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DynoMag交流磁化量測同相異向磁化率TheDynoMagsystemandTheHighFrequency(HF)ACsusceptometerACsusceptometry(ACS)givesinformationonhowfastmagnetizationisbuildingupinamaterial.Anexcitationmagneticfieldisappliedoverthesampleandthein-phaseandout-of-phasesusceptibilityismeasuredinafrequencyrange.DifferenttypesofmagnetizationprocessescanbemeasuredwithACS.CauseTheDynoMagSystemTheDynoMagsystemisaportableeasytouseACsusceptometerformeasuringthedynamicmagneticpropertiesofliquids,powdersandsolidsatroomtemperature.Theexcitationfrequencyrangeisfrom1Hzupto500kHzwitharesolutioninvolumesusceptibility1·10-5?(SIunits)at1kHzandaexcitationfieldamplitudeof0.5mT.Typicalapplicationareas:·ACsusceptibilitymeasurementsofsolids,powdersandliquids·Dynamicmagneticanalysisinthefieldofmagneticnanoparticles(MNPs)·DeterminethesizedistributionofmagneticnanoparticlesusinganalgorithmincludedinthesoftwareoftheDynoMag(includingbothBrownianandNéelrelaxation)·Studystabilityandpossibleparticleclusteringduringforinstancebio-functionalizingofMNPs·FollowthebindingreactionsofbiomoleculestoMNPs·Measurementofmagneticpropertiesingeophysics?TheDynoMagHFsystem

1TheDynoMagHFsystemisanACsusceptometerformeasuringthedynamicmagneticpropertiesofliquids,powdersandsolidsatroomtemperature.Theexcitationfrequencyrangeisfrom25kHzupto10MHzwitharesolutioninvolumesusceptibility4.10-5?(SIunits)at100kHzandaexcitationfieldamplitudeof30μT.Typicalapplicationareas:·ACsusceptibilitymeasurementsofsolids,powdersandliquidsatfrequenciesupto10MHz·DeterminethesizedistributionofmagneticnanoparticlesusinganalgorithmincludedinthesoftwareoftheDynoMag(includingbothBrownianand?Néelrelaxation)·Dynamicmagneticanalysisinthefieldofmagneticnanoparticles(MNPs)·DetecttheNéelrelaxationofsingle-coreparticlesystems·Measurementofmagneticpropertiesingeophysics?TheLowTemperatureHighFrequencyACSusceptometerIncollaborationwithProf.?SeanGiblin’sresearchteamatCardiffUniversitywehavedevelopedalowtemperaturehighfrequency(LTHF)ACSsystemintegratedinaQuantumDesignPPMssystem.ThismakesitpossibletocarryouthighfrequencyACSsensingalsoatlowtemperaturesandathighstaticmagneticfields(paperinReviewofScientificInstruments).MethodConstructioniscarriedoutinourlabsatRISEinG?teborg.DeliveriesDeliveryofthetheDynoMagsystemortheDynoMagHFsystemincludingmanual,calibrationsample?andsamplevials.

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