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System For Characterizing Three-Phase Brushless dc MotorsSystem of electronic hardware and software developed to automate measurements and calculations needed to characterize electromechanical performances of three-phase brushless dc motors, associated shaft-angle sensors needed for commutation, and associated brushless tachometers. System quickly takes measurements on all three phases of motor, tachometer, and shaft-angle sensor simultaneously and processes measurements into performance data. Also useful in development and testing of motors with not only three phases but also two, four, or more phases.
Document ID
Document Type
Other - NASA Tech Brief
Howard, David E.
(NASA Marshall Space Flight Center, Huntsville, AL.)
Smith, Dennis A.
(NASA Marshall Space Flight Center, Huntsville, AL.)
Date Acquired
August 17, 2013
Publication Date
April 1, 1996
Publication Information
Publication: NASA Tech Briefs
Volume: 20
Issue: 4
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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