Extreme temperature flow meter

Details Extreme temperature flow meter Extreme temperature flow meter

1987-08-19

1990-03-06

Orsino, Joseph A.

Measuring and testing

Volume or rate of flow

Using rotating member with particular electrical output or...

G01F 110

Patent

active

049055224

ABSTRACT:
A flowmeter has an elongated probe with a rotor positioned at the distal end of the probe for insertion into a fluid flow and an elongated conductor in the probe that terminates adjacent the rotor. A signal generator induces a standing wave on the conductor, and rotation of the rotor, which acts as a capacitor, induces a reciprocating phase shift in the standing wave. The rate of reciprocation of the phase shift, as well as the change in amplitude at a point on the conductor, is proportional to, and indicative of, the flow rate of the fluid and is detected and measured as an instrumentation signal. The probe, rotor, circuit insulation, and seal components are all fabricated of materials that withstand extreme temperatures.

REFERENCES:
patent: 3880003 (1975-04-01), Jameson
patent: 3890837 (1975-06-01), Frizzell et al.
patent: 4110685 (1978-08-01), Leenerts
patent: 4324144 (1982-04-01), Miyata et al.
patent: 4380934 (1983-04-01), Okuda et al.
patent: 4399696 (1983-08-01), Feller
patent: 4535637 (1985-08-01), Feller
patent: 4537081 (1985-08-01), Max

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