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Magnetic-Bearing Test FixtureMicrocomputer-controlled magnetic-bearing test fixture used to develop approaches to design of controls for magnetic bearing actuators designed and constructed. Includes load cells connected to bar, in turn, connected through screw positioners to geared drive motors. Position of equivalent suspended element sensed by position sensors and controlled by drive motors. Provides control of gap in magnetic bearing and of current in electromagnet coil. Measurements made include magnetic-bearing gaps, magnetic flux in bearing gaps, and bearing forces. Approaches to linearization and control developed by use of fixture applicable to wide range of small-gap suspension systems.
Document ID
19910000605
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Groom, Nelson J.
(NASA Langley Research Center, Hampton, VA.)
Poole, William L.
(NASA Langley Research Center, Hampton, VA.)
Date Acquired
August 14, 2013
Publication Date
November 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 11
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
LAR-14312
Accession Number
91B10605
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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