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Capacitance Dilatometry Attachment for a Surface-Force Apparatus

Stewart, Andrew

Description

An application of capacitance dilatometry to a surface-force apparatus is described. The distance between the surfaces is obtained from the capacitance of a cylindrical parallel-plate capacitor measured with a variable-ratio transformer bridge; the surface separation is made to vary with a magnetic force transducer. The method permits measurements of forces between opaque surfaces over periods of time ranging from tens of milliseconds to, in principle, an indefinite period. A new method of...[Show more]

dc.contributor.authorStewart, Andrew
dc.date.accessioned2015-12-13T23:17:38Z
dc.date.available2015-12-13T23:17:38Z
dc.identifier.issn0957-0233
dc.identifier.urihttp://hdl.handle.net/1885/89804
dc.description.abstractAn application of capacitance dilatometry to a surface-force apparatus is described. The distance between the surfaces is obtained from the capacitance of a cylindrical parallel-plate capacitor measured with a variable-ratio transformer bridge; the surface separation is made to vary with a magnetic force transducer. The method permits measurements of forces between opaque surfaces over periods of time ranging from tens of milliseconds to, in principle, an indefinite period. A new method of signal analysis that allows linear and accurate measurement of displacement over a large fraction of the separation between the plates of the capacitor is described.
dc.publisherInstitute of Physics Publishing
dc.sourceMeasurement Science and Technology
dc.subjectKeywords: Adhesion; Capacitance dilatometry; Electrical double layer; Surface potential; Surface-force apparatus; Transformer bridge
dc.titleCapacitance Dilatometry Attachment for a Surface-Force Apparatus
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume11
dc.date.issued2000
local.identifier.absfor020406 - Surfaces and Structural Properties of Condensed Matter
local.identifier.ariespublicationMigratedxPub20020
local.type.statusPublished Version
local.contributor.affiliationStewart, Andrew, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.startpage298
local.bibliographicCitation.lastpage304
local.identifier.doi10.1088/0957-0233/11/3/319
dc.date.updated2015-12-12T08:53:50Z
local.identifier.scopusID2-s2.0-0033718726
CollectionsANU Research Publications

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