Ionic measuring device

Details Ionic measuring device Ionic measuring device

1977-04-25

1978-11-28

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

G01F 156

Patent

active

041270290

ABSTRACT:
A device for measuring the mass flow or speed of a gas in a pipe comprising a first annular insulating member which supports an ionic source electrode, a second annular insulating member spaced from the first element in the flow direction, the second member supporting "transparent" and collecting electrodes which are insulated from each other and from the source electrode, and a grounded conducting guard ring located between the first and second members which prevents surface currents from flowing between the first and second members.

REFERENCES:
patent: 3324729 (1967-06-01), Vanderslice
patent: 3996795 (1976-12-01), Servassier
patent: 4019383 (1977-04-01), Wiegand, Jr. et al.

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