System for measuring the speed of rotation of a synchro by means

Details System for measuring the speed of rotation of a synchro by means System for measuring the speed of rotation of a synchro by means

1978-04-20

1979-12-25

Wise, Edward J.

Boots, shoes, and leggings

364433, 364817, G06F 1520

Patent

active

041808592

ABSTRACT:
By combining three single-phase output voltages of a synchro, signals are obtained which are proportional to the sine and the cosine of the angle of rotation of the synchro shaft. Said signals are sampled at predetermined instants by switching means controlled by a clock voltage, and are applied to computing means which form a signal representative of the speed of rotation of the shaft of the synchro and of a change in the altitude at which an aircraft flies.

REFERENCES:
patent: 3629705 (1971-12-01), Walters
patent: 3720866 (1973-03-01), Avellar et al.
patent: 4021658 (1977-05-01), Rhodes
patent: 4056287 (1977-11-01), Gudat
patent: 4125295 (1978-11-01), Ruhnau et al.

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