Tachometer

Details Tachometer Tachometer

1976-03-18

1977-08-02

Rolinec, Rudolph V.

Electricity: measuring and testing

Electrical speed measuring

Including speed analog electrical signal generator

324163, 340347SY, 340347P, 340271, 324174, G01P 352

Patent

active

040399460

ABSTRACT:
A tachometer in which sine and cosine signals responsive to the angular position of a shaft as it rotates are each multiplied by like, sine or cosine, functions of a carrier signal, the products summed, and the resulting frequency signal converted to fixed height, fixed width pulses of a like frequency. These pulses are then integrated, and the resulting DC output is an indication of shaft speed.

REFERENCES:
patent: 3018395 (1962-01-01), Carlstein
patent: 3357012 (1967-12-01), Brook
patent: 3641565 (1972-02-01), Ivers et al.
patent: 3742243 (1973-06-01), Gamble
patent: 3868680 (1975-02-01), Rhodes
patent: 3872388 (1975-03-01), James

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