Fluid flow measurement

Details Fluid flow measurement Fluid flow measurement

1977-04-11

1979-09-11

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

73194E, 343719, G01F 166, G01S 902, H01Q 104

Patent

active

041677366

ABSTRACT:
A dielectric aerial is disposed in contact with a dielectric liquid, and projects microwave radiation thereinto. The reflected radiation is received by the aerial, and the flow rate of the liquid given by the Doppler frequency shift between the projected and the reflected radiation. A control circuit is arranged to vary the flow rate in response to the Doppler signal.

REFERENCES:
patent: RE28686 (1976-01-01), Coulthard
patent: 1377129 (1921-05-01), Hahnemann
patent: 3482370 (1969-12-01), Brueckmann
patent: 3547540 (1970-12-01), Shigemoto
patent: 3550070 (1970-12-01), McLeod, Jr.
patent: 3551794 (1970-12-01), Heyden et al.
patent: 3584956 (1971-06-01), Hines et al.
patent: 3852743 (1974-12-01), Gupta
patent: 3891869 (1975-06-01), Scarpa
patent: 4019038 (1977-04-01), Critten et al.
patent: 4019562 (1977-04-01), Shiraiwa et al.

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