Microwave system for detecting gaseous emboli

Details Microwave system for detecting gaseous emboli Microwave system for detecting gaseous emboli

1991-06-26

1993-03-30

Harvey, Jack B.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

1286531, 128DIG13, 604 50, 73 191, G01R 2704, A61B 505, A61M 3100

Patent

active

051987767

ABSTRACT:
Apparatus and a method for detecting the presence of incidental bubbles in liquid flowing in a tube. The system monitors the amplitude of microwave radiation from the liquid and recognizes when that amplitude drops in a manner characteristics of the presence of a bubble.

REFERENCES:
patent: 3956695 (1976-05-01), Stamm
patent: 4135131 (1979-01-01), Larsen et al.
patent: 4280495 (1981-07-01), Lampert
patent: 4532151 (1985-11-01), Bolomey et al.
patent: 4647281 (1987-03-01), Carr
patent: 4715727 (1987-12-01), Carr
patent: 4938079 (1990-07-01), Goldberg
patent: 5057782 (1991-10-01), Brown et al.
patent: 5073167 (1991-12-01), Carr et al.

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