Electrical transducer responsive to fluid flow

Measuring and testing – Volume or rate of flow – Using differential pressure

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Details

G01F 124

Patent

active

043041361

ABSTRACT:
The invention in a preferred form contemplates a valve-like structure adapted for series-connection in a pipe or other conduit line and having a valve member which is caused, within the constraint of a rectilineal guide, to change its longitudinal position as a substantially linear function of the change of fluid-flow rate in the pipe or conduit; and an inductive device tracks the position of the valve member to produce an electrical output signal which is also a substantially linear function of the fluid-flow rate. The description includes a unidirectional embodiment (which is also a check valve for flow in the non-metering direction), and a bi-directional embodiment.

REFERENCES:
patent: 1274642 (1918-08-01), Wagner et al.
patent: 2069309 (1937-02-01), Henszey
patent: 2640356 (1953-06-01), Shannon
patent: 3528288 (1970-09-01), Scourtes
patent: 3744313 (1973-07-01), Thompson
patent: 4194394 (1980-03-01), Bartholomaus

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