Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Patent
1991-10-04
1992-05-26
Hellner, Mark
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
356436, 119 1415, 73861, G01F 2300
Patent
active
051161192
ABSTRACT:
A method and apparatus for measuring liquid flow, particularly milk, includes directing the liquid to flow through one or more flow channels, while exposing the liquid to electromagnetic radiation; measuring the transparency to electromagnetic radiation of the liquid flowing through the flow channel; and measuring the momentary attenuation of electromagnetic radiation by the liquid flowing through the flow channels, to determine the momentary volume of the liquid flowing through the flow channel. The momentary velocity of the liquid flowing through the flow channels is also determined, thereby permitting a determination of the momentary flow rate of the liquid flowing through the flow channels.
REFERENCES:
patent: 4433577 (1984-02-01), Khurgin et al.
patent: 4543834 (1985-10-01), Hasegawa et al.
patent: 4925296 (1990-05-01), Reichmuth
Barish Benjamin J.
Hellner Mark
S.C.R. Engineers Ltd.
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