Brushless tachometer/synchro

Details Brushless tachometer/synchro Brushless tachometer/synchro

1987-05-12

1989-02-07

Perkey, W. B.

Electricity: single generator systems

Generator control

With excitation winding and/or circuit control

324163, H02P 914, G01P 346

Patent

active

RE0328570

ABSTRACT:
A generator providing both tachometer and synchro outputs and comprising a magnetic stator and a corresponding armature structure. The generator stator structure produces a composite magnetic field of both constant (DC) and alternating (AC) flux. The rotor directs the composite flux field through a plurality of sensing coils, each producing a signal from the sensed composite magnetic field and rotor motion, and which coil signal is separated into separate signal components. The components are processed to produce a synchro output which preferrably has standard Hall-effect equivalent signals, as well as providing a tachometer output voltage proportional to the rotor rotational velocity and direction.

REFERENCES:
patent: 2516114 (1950-07-01), Green
patent: 4088943 (1978-05-01), Schmidt
patent: 4228396 (1980-10-01), Polombo
patent: 4364005 (1982-12-01), Kohzai et al.
patent: 4605889 (1986-08-01), Luneau
patent: 4659953 (1987-04-01), Luneau

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