Karman vortex flow meter

Details Karman vortex flow meter Karman vortex flow meter

1995-11-06

1998-01-13

Dougherty, Elizabeth L.

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

73202, G01F 132, G01F 168

Patent

active

057082146

ABSTRACT:
A Karman vortex flow meter has detection passages located along a fluid flow in a duct. Flow outlets of the detection passages are disposed on an end face of a vortex generation element and flow inlets are disposed upstream from the flow outlets. Heating coils for detecting flow velocity change of a fluid caused by a negative pressure of a Karman vortex are mounted in the detection passages. A flow meter is used that lessens dust accumulation on heating coils, etc., and reliably detects Karman vortexes.

REFERENCES:
patent: 4571996 (1986-02-01), Wakeman et al.
patent: 4879898 (1989-11-01), Bamer

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