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dc.contributor.authorWoodfield, Peteren_US
dc.contributor.authorSeagar, Andrewen_US
dc.contributor.authorHall, Wayneen_US
dc.date.accessioned2017-05-03T15:47:59Z
dc.date.available2017-05-03T15:47:59Z
dc.date.issued2012en_US
dc.date.modified2012-09-20T21:53:55Z
dc.identifier.issn15729567en_US
dc.identifier.doi10.1007/s10765-012-1157-5en_US
dc.identifier.urihttp://hdl.handle.net/10072/46883
dc.description.abstractVibrating wire viscometers rely on the principle that the viscosity of the fluid surrounding the wire provides the dominant damping action on the motion of the wire. However, some residual damping is always present due to other effects such as internal friction of the wire (anelastic relaxation), losses through the wire supports, and magnetic damping. Magnetic damping is a physical mechanism that has received relatively less attention than internal friction in the context of viscometers. The phenomenon arises because the current induced by the motion of the wire contributes to the magnetic field in such a way as to oppose its own motion. For a test circuit using a 40 孤iameter tungstenwire in a 0.3Tmagnetic field, surprisingly, the effect of magnetic damping was found to be of a similar order of magnitude to other non-viscous damping effects. The effect can be accounted for by including the internal impedance of the oscillating voltage source in themodel and it disappears completely for a perfect oscillating current source.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.languageEnglishen_US
dc.publisherSpringeren_US
dc.publisher.placeUnited Statesen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom259en_US
dc.relation.ispartofpageto278en_US
dc.relation.ispartofissue2en_US
dc.relation.ispartofjournalInternational Journal of Thermophysicsen_US
dc.relation.ispartofvolume33en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchMechanical Engineering not elsewhere classifieden_US
dc.subject.fieldofresearchcode091399en_US
dc.titleMagnetic Damping Effects in Forced-Oscillation Vibrating-Wire Viscometersen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Engineeringen_US
gro.date.issued2012
gro.hasfulltextNo Full Text


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