Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1989-11-17
1991-05-28
Hudspeth, David
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 83D, 324 79D, G01R 2500
Patent
active
050197860
ABSTRACT:
A phase measurement system which measures the phase shift between two signals by dithering a clock signal and averaging a plurality of measurements of the phase differences between the two signals.
REFERENCES:
patent: 4471299 (1984-09-01), Elmis
patent: 4600994 (1986-07-01), Hayashi
patent: 4607218 (1986-08-01), Stosel
patent: 4634967 (1987-01-01), Virieux
patent: 4970638 (1990-11-01), Yeh et al.
patent: 4972431 (1990-11-01), Keegan
Fairley Christopher R.
Patterson Steven R.
Carnahan L. E.
Hudspeth David
Lee Michael
Moser William R.
Sanders Andrew
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