G - Physics – 01 – D
Patent
G - Physics
01
D
G01D 3/032 (2006.01) G01D 1/00 (2006.01) G01R 13/00 (2006.01) G01R 13/34 (2006.01) G01R 19/25 (2006.01)
Patent
CA 2162654
An electronic test instrument adapted for displaying only meaningful information notwithstanding the intermittent arrival of valid input signals due to probing operations is provided. Two independent measurement processes measure the input signal simultaneously. The first measurement process operates in a similar fashion to a digital storage oscilloscope (DSO) by successively sampling the input signal to produce waveform information which are selectively sent to an LCD display device which graphically displays the waveforrn. The second measurement process continually performs a stability assessment of the input signal by collecting a series of stability measurements of a selected input signal parameter, creating a moving average of the series, and comparing each new stability measurement to the moving average relative to stability criteria. The stability decision controls the flow of waveform information to the display, thereby ensuring that only meaningful information is displayed based on waveform scans conducted when the input signal is stable.
Gibson Robert T.
Heydron Paul H.
Fluke Corporation
Oyen Wiggs Green & Mutala Llp
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