Apparatus for measuring and controlling velocity

Details Apparatus for measuring and controlling velocity Apparatus for measuring and controlling velocity

1986-12-11

1989-02-21

Lall, Parshotam S.

Boots, shoes, and leggings

356 28, 324166, 364582, G01P 342

Patent

active

048071641

ABSTRACT:
Apparatus for measuring velocity utilizes quadrature input signals provided by a transducer and divides the derivative of one of the signals by the magnitude of the other to obtain a measure of velocity. The apparatus may be digital or analog. It is particularly suitable for the measurement of velocity where the quadrature signals are provided by an optical grating and transducer arrangement.

REFERENCES:
patent: 3819268 (1974-06-01), Johnson
patent: 4019145 (1977-04-01), Rathe
patent: 4166976 (1979-09-01), Ruhnau et al.
patent: 4199719 (1980-04-01), Grob
patent: 4323976 (1982-04-01), Radaelli et al.
patent: 4449191 (1984-05-01), Mehnert
patent: 4527120 (1985-07-01), Kurosawa
patent: 4569027 (1986-02-01), Nakano et al.
patent: 4680721 (1987-07-01), Pluddemann

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