Measuring and testing – Volume or rate of flow – By measuring transit time of tracer or tag
Patent
1995-06-07
1996-07-09
Chilcot, Richard
Measuring and testing
Volume or rate of flow
By measuring transit time of tracer or tag
7320426, G01F 1168
Patent
active
055334121
ABSTRACT:
A precise fluid flow meter fabricated by micromachining techniques measures a wide range of fluid flow rates. Two serial portions of an enclosed channel have different cross-sectional areas, and therefore different flow velocities. The fluid carries the thermal pulse through the flow channel to two sensor elements spaced apart along the channel downstream from the heating element. The transit time of the thermal pulse between the two sensor elements measures the fluid flow velocity.
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Jerman John H.
Pennington David W.
Toth Ronald E.
Winchell David A.
Baxter International Inc.
Chilcot Richard
IC Sensors Inc.
Klivans Norman R.
Patel Harshad
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