Vortex flowmeter

G - Physics – 01 – F

Patent

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73/125

G01F 1/32 (2006.01)

Patent

CA 1179528

R. H. Barnard 3X (Rev.) VORTEX FLOWMETER ABSTRACT OF THE DISCLOSURE An elongate body extends as a bar across a fluid flow passage and has a vortex shedding Lapered head portion pointing upstream and a tail portion downstream of the head. The head has an axial length equal to or less than half the head width. The tail has a width less than head width throughout its length. A sensor is arranged downstream of the head. For example, the sensor may be in the tail portion of the body such as to sense the vortices produced alternately on the side surfaces. The frequency output of the sensor is proportional to the relative speed between the elongate body and the fluid. The arrangement can be used as a fluid flowmeter or a ship's log.

406527

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