Electronic device for taking the speed of a rotating member

Details Electronic device for taking the speed of a rotating member Electronic device for taking the speed of a rotating member

1979-07-31

1982-04-06

Krass, Errol A.

Boots, shoes, and leggings

235 92FQ, 324160, G01P 342

Patent

active

043239765

ABSTRACT:
This invention relates to an electronic device for taking the speed of a rotating member. In order to provide speed signals having a different degree of discrimination at the interior of a determined range of values, the device according to the invention comprises transducer means operatively connected to the rotating member to generate a first train of pulses, pulse generating means for generating a second train of pulses at a constant frequency, counting means for counting the pulses of said second train between two subsequent selected pulses of said first train, and a microprocessor for comparing the counted pulses with reference numbers comprised between predetermined minimum and maximum values corresponding to higher and lower values of a maximum speed zone of the speed range.

REFERENCES:
patent: 3886542 (1975-05-01), Ohtsuka
patent: 4056287 (1977-11-01), Gudat
patent: 4125295 (1978-11-01), Ruhnau et al.
patent: 4171522 (1979-10-01), Powell
patent: 4177516 (1979-12-01), Mason

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