Data acquisition and display device

Details Data acquisition and display device Data acquisition and display device

G - Physics

01

R

354/21, 354/97

G01R 13/34 (2006.01)

Patent

CA 1099410

ABSTRACT OF THE DISCLOSURE 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 fre- quency selected by the operator.

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