Capacitive vortex mass flow sensor

Details Capacitive vortex mass flow sensor Capacitive vortex mass flow sensor

1997-01-17

1998-09-08

Dombroske, George M.

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 132

Patent

active

058047409

ABSTRACT:
A vortex mass flowmeter includes a body for placement in a flow path of a fluid and four capacitive sensors. The body has a sleeve and a rod positioned within a chamber in the sleeve. Two of the capacitive sensors are mounted to sense lateral deflection of the sleeve relative to the rod and two of the capacitive sensors are mounted to sense axial deflection of the sleeve relative to the rod, thereby providing frequency signals related to shedding and drag, respectively. The shedding signal is dependent on the flow velocity, and the drag signal is dependent on the flow velocity and the fluid density.

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