Non-perturbing cavity method and apparatus for measuring certain

Measuring and testing – Volume or rate of flow – By measuring transit time of tracer or tag

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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

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