Self-powered system for measuring rotation speeds

Details Self-powered system for measuring rotation speeds Self-powered system for measuring rotation speeds

1977-02-23

1978-11-28

Krawczewicz, Stanley T.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

G01P 348

Patent

active

041278127

ABSTRACT:
A tachometer comprises a pick-up for rotational speed of a phonic wheel and magneto-electrical transducer and means for measuring the frequency of the alternating current which is delivered from the transducer. The tachometer comprises means for measuring the frequency and power supply means which are connected to the output of the transducer. Such a tachometer is useful as a control system for controlling the functioning of motors especially aeronautic motors.

REFERENCES:
patent: 3569737 (1971-03-01), Bauer
patent: 3573619 (1971-04-01), Ivec
patent: 3599627 (1971-08-01), Millen
patent: 3826985 (1974-07-01), Wiley

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