Measuring and testing – Volume or rate of flow – Expansible chamber
Patent
1974-06-12
1976-01-27
Queisser, Richard C.
Measuring and testing
Volume or rate of flow
Expansible chamber
G01F 115
Patent
active
039344738
ABSTRACT:
A fluid flow meter with two independantly counter rotating turbine impellers is disclosed in which fluid characteristics and/or upstream flow disturbances cause minimal variations in volume flow rate measurements by the meter as a result of fluidynamic interaction between the impellers.
The angular velocities of each of the impellers are sensed in a conventional manner after which the velocity signals are added to indicate a total volume thruput, and/or rate of flow, and optionally compared to indicate an occurance of mechanical or electronic degradation.
REFERENCES:
patent: 2800022 (1957-07-01), Granberg
Appleman John S.
Cannon, Jr. James J.
Queisser Richard C.
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