Efficiency of electric motors and generators is reduced by radial magnetic forces created by symmetric fields within device. Forces are sensed and counteracted by Hall devices on excitation or control windings. Hall generators directly measure and provide compensating control of anu asymmetry, eliminating additional measurements needed for calibration feedback control loop.
Hall devices improve electric motor efficiency
NASA Tech Briefs ; 3 , 3
1979-01-01
Sonstige
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Englisch