Measuring and testing – Volume or rate of flow – By measuring transit time of tracer or tag
Patent
1988-10-11
1990-04-03
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
By measuring transit time of tracer or tag
324636, 7386108, G01F 1708, G01N 2200, G01R 2704
Patent
active
049129821
ABSTRACT:
A non-perturbing cavity method and apparatus for measuring parameters, such as dielectric constant and flow rate, of fluid within a conduit. A bidirectionally radiating lens directs energy toward a defined length of such a conduit, and toward a receiver at a receiving site on the opposite side of the lens. The receiver produces a signal whose voltage amplitude conditions are directly interpretable to indicate such parameters.
REFERENCES:
patent: 4234844 (1980-11-01), Yukl
patent: 4318108 (1982-03-01), Yukl
patent: 4651085 (1987-03-01), Sakurai et al.
patent: 4751476 (1988-06-01), Meijer
Goldstein Herbert
Spatial Dynamics, Ltd.
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