NASA NTRS · 20010125616
System and Method for Determining Rate of Rotation Using Brushless DC Motor
Abstract
A system and method are provided for measuring rate of rotation. A brushless DC motor is rotated and produces a back electromagnetic force (emf) on each winding thereof. Each winding's back-emf is squared. The squared outputs associated with each winding are combined, with the square root being taken of such combination, to produce a DC output proportional only to the rate of rotation of the motor's shaft.
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David E Howard, Dennis A Smith. 2000-11-07. System and Method for Determining Rate of Rotation Using Brushless DC Motor. https://ntrs.nasa.gov/citations/20010125616
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