Data acquisition and display device

Details Data acquisition and display device Data acquisition and display device

1977-06-08

1979-05-15

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With storage means for voltage or current

340347AD, 364900, G01R 100, H03R 1302

Patent

active

041550374

ABSTRACT:
A data acquisition and display device for acquiring and displaying the time history of the variations in an analog value includes digital circuitry which employs a staircase voltage generator operated at a first frequency to quantize a range of analog voltages which correspond to the expected variations in the analog value. When the staircase voltage equals an analog voltage corresponding to the instantaneous value of the analog value, a memory device is conditioned to receive data corresponding to the staircase value. The memory acquires the data at a second frequency selected by the operator to acquire a fixed number of data inputs over a selected time period for which the time history is desired, and the circuitry automatically terminates data acquisition when the fixed number of data inputs is acquired. The data is read out at a third frequency selected by the operator.

REFERENCES:
patent: 2761968 (1956-09-01), Kuder
patent: 3662380 (1972-05-01), Cargile
patent: 3836851 (1974-09-01), Schumann

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