Velocity detector for detecting velocity from position detector

Details Velocity detector for detecting velocity from position detector Velocity detector for detecting velocity from position detector

1989-11-08

1991-04-30

Strecker, Gerard R.

Electricity: measuring and testing

Electrical speed measuring

324166, 364565, G01P 344, G01P 3481, G01P 350

Patent

active

050121880

ABSTRACT:
A velocity signal is obtained by calculating both the selected signal of the differentiated signal of the position signal from a position detector and the selected signal of the sinusoidal wave signal according to position displacement, so that a velocity detection produces a smaller velocity detection error at a low velocity and generates no ripple component even when a high velocity is detected.

REFERENCES:
patent: 4560927 (1985-12-01), Ishida et al.
patent: 4587485 (1986-05-01), Papiernik
patent: 4839834 (1989-06-01), Omae et al.
patent: 4868497 (1989-09-01), Wallrafen

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