Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1987-06-03
1989-04-11
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 58A, 324 585R, G01R 2704, G01R 2726
Patent
active
048209708
ABSTRACT:
A microwave system for determining the volume fraction of water in a fluid. In the described application, the fluid is crude oil, and the system is used to determine the volume fraction of water in the crude oil. A microwave beam having a frequency which varies with time is transmitted through the liquid, and absorption losses are calculated. The volume fraction of water is determined according to the absorption losses.
REFERENCES:
patent: 3851244 (1974-11-01), Mounce
patent: 4135131 (1979-01-01), Larson et al.
patent: 4301400 (1981-11-01), Paap
patent: 4484133 (1984-11-01), Riggin
patent: 4634963 (1987-01-01), Lunden
Eisenzopf Reinhard J.
Miele Anthony L.
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