Logarithmic statistical distribution analyzer

Details Logarithmic statistical distribution analyzer Logarithmic statistical distribution analyzer

1975-12-04

1976-12-07

Woodiel, Donald O.

Measuring and testing

Speed, velocity, or acceleration

Centrifugal weight type

G01H 314

Patent

active

039955001

ABSTRACT:
A device for measuring the statistical distribution within a discrete range f a measured continuous variable. A conventional type meter which employs a scaling amplifier in series with weighted filters, a true RMS detector and time averager is used to detect the variable level and convert it to a analogue voltage of magnitude proportional to the magnitude of the variable at any given instant. The voltage signal is then passed through a scaling amplifier to an analogue to digital converter. The converter is controlled by a timer with an adjustable rate in such a way that the converter output is pulsed. Each level of the digital output is connected to a counter. Since each level corresponds to a discrete range of magnitudes of the variable, the percent time within a given discrete range can be calculated from the ratio of the pulses counted at a given level to the total number of samples taken.

REFERENCES:
patent: 3483941 (1969-12-01), Brady
patent: 3613111 (1971-10-01), Paine
patent: 3892133 (1975-07-01), Quinn

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