Circuit for the digital measurement of the speed of a moving obj

Details Circuit for the digital measurement of the speed of a moving obj Circuit for the digital measurement of the speed of a moving obj

1977-11-16

1979-09-04

Strecker, Gerard R.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

364565, G01P 348

Patent

active

041669762

ABSTRACT:
A speed measuring circuit for digitally determining the angular speed of a rotating object employing a sensor and control unit for producing a sequence of signals proportional to the speed of the rotating object and for measuring the speed which is inversely proportional to the cycle duration. A storage register for storing a certain number of fixed values which are associated with certain speed values and which are graduated as preset of a predetermined speed measuring range. A comparator and control unit for comparing the cycle duration value measured each time with the fixed values and for setting the measured value equal to one of two successive speed step values when the measured value falls within the speed interval which is limited by the two successive speed step values.

REFERENCES:
patent: 4056287 (1977-11-01), Gudat

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