Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1986-04-24
1988-11-22
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 585R, 73304R, G01N 2700
Patent
active
047868570
ABSTRACT:
Methods and apparatus for determining the relative proportions of intermixed constituents of a multiphase fluid system. The constituents for which relative proportions are being measured must have measurably different electrical permittivities. The systems use at least one electrically conductive probe having two conductors which are spaced apart and capable of receiving the fluid system therebetween. Time domain reflectometers present a stimulating time varying electrical signal to the probes and receive and measure reflected signals generated at impedance changes in the transmission line and probe. The probe transit time and/or associated average probe velocity provide a measure of the fluid system conditions which can be compared to predetermined values corresponding to various relative proportions of the intermixed constituents. A measure of the relative portions of the constituents is thus provided. The variability of individual probe transit velocity data can be measured, analyzed and used to measure fluid system turbulence. Relevant data can also be interpolated, extrapolated and integrated to provide profiling of the fluid system conditions and a means of total system inventory of the constituents.
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Mohr Charles L.
Reich Frederick R.
Eisenzopf Reinhard J.
Harvey Jack B.
Mohr Charles L.
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