Patent ID: 9581474
Date: 2017-02-28
CPC Classifications: G01F

Claim:
1. A device for measuring flow of a fluid, the flow measuring device comprising: a housing having an inlet, an outlet and a passage extending between the inlet and outlet; a shaft disposed within the housing and rotatable about a central axis; a flow detector mounted on the shaft and disposed at least partially within the passage such that the fluid flows through the passage at a linear flow rate directly proportional to an angular rotation of the flow detector about the central axis and such that fluid flow through the passage rotates the flow detector about the central axis, wherein the flow detector includes a rotatable, generally cylindrical body that rotates about the central axis as the fluid flows; a magnet disposed within the housing such that the central axis extends therethrough, said magnet configured to rotate simultaneously with the body about the central axis extending therethrough; and a sensor disposed within the housing and configured to sense rotation of the magnet as the flow detector angularly displaces about the central axis so as to detect angular displacement of the flow detector.