Measuring and testing – Volume or rate of flow – Using rotating member with particular electrical output or...
Patent
1993-12-27
1995-09-19
Chilcot, Jr., Richard E.
Measuring and testing
Volume or rate of flow
Using rotating member with particular electrical output or...
7386102, G01F 1500, G01F 186, G01F 1502
Patent
active
054507600
ABSTRACT:
A turbine flowmeter employs a capacitive rotary speed sensor comprising an electrically conductive member with a sizable surface area kinematically coupled to the rotating motion of the turbine, and a pair of stationary electrically conductive members with a sizable area disposed in a side-by-side electrically nonconducting relationship therebetween on a plane closely adjacent to a plane defined by the sizable surface area of the electrically conductive member kinematically coupled to the rotating motion of the turbine, wherein a first alternating electrical signal is supplied to one of the pair of stationary electrically conductive members and a second alternating electrical signal is taken off from the other of the pair of stationary electrically conductive members, and the flow rate of fluid is determined as a function of the frequency of fluctuation of an envelope of the second alternating electrical signal.
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Lew Hyok S.
Lew Yon K.
Lew Yon S.
Chilcot Jr. Richard E.
Oen William L.
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