Spiral coil target flow meter

Details Spiral coil target flow meter Spiral coil target flow meter

1985-05-06

1987-03-10

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring thrust or drag forces

G01F 128

Patent

active

046482784

ABSTRACT:
This invention discloses a flowmeter employing a spiral coil target coaxially disposed within a flow passage included in the body of the flowmeter, wherein the drag and/or torque imposed on the spiral coil target by the moving fluid medium is measured and converted to the flow rate of the fluid medium moving through the flow passage. A flat or conical spiral coil made of a wire or strip of a non-lift generating cross section is used as a target to generate the drag thereon, which drag is converted to the flow rate. A conical spiral coil made of a wire or strip of a non-lift generating cross section or a planar or conical spiral coil made of a strip of a lift generating cross section is used as a target to generate the torque thereon, which torque is converted to the flow rate.

REFERENCES:
patent: 2800794 (1957-07-01), Meneghelli
patent: 2811855 (1957-11-01), Kotas
patent: 2979947 (1961-04-01), Main et al.
patent: 3167691 (1965-01-01), Halista
patent: 3403556 (1968-10-01), Koester

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