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dc.contributor.authorHvasta, M. G.-
dc.contributor.authorDudt, D.-
dc.contributor.authorFisher, A. E.-
dc.contributor.authorKolemen, E.-
dc.description.abstractA 'weighted magnetic bearing' has been developed to improve the performance of rotating Lorentz-force flowmeters (RLFFs). Experiments have shown that the new bearing reduces frictional losses within a double-sided, disc-style RLFF to negligible levels. Operating such an RLFF under 'frictionless' conditions provides two major benefits. First, the steady-state velocity of the RLFF magnets matches the average velocity of the flowing liquid at low flow rates. This enables an RLFF to make accurate volumetric flow measurements without any calibration or prior knowledge of the fluid properties. Second, due to minimized frictional losses, an RLFF is able to measure low flow rates that cannot be detected when conventional, high-friction bearings are used. This paper provides a brief background on RLFFs, gives a detailed description of weighted magnetic bearings, and compares experimental RLFF data to measurements taken with a commercially available flowmeter.en_US
dc.description.tableofcontentsRead me and data files.en_US
dc.publisherPrinceton Plasma Physics Laboratory, Princeton Universityen_US
dc.relationMeasurement Science and Technology, 2018, vol. 29, p. 075303en_US
dc.subjectlow-friction bearingsen_US
dc.subjectLorentz-force velocimetryen_US
dc.subjectliquid metalen_US
dc.titleCalibrationless rotating Lorentz-force flowmeters for low flow rate applicationsen_US
pu.projectgrantnumber31016 G0001 10003086 101-
pu.depositorStratton, Brent-
dc.contributor.funderU. S. Department of Energy contract number DE-AC02-09CH11466en_US
Appears in Collections:Plasma Science & Technology

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