Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Patent
1979-06-04
1981-06-16
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
G01F 156
Patent
active
042729955
ABSTRACT:
An ionization flow meter which can determine with high accuracy the flow of a gas expressed as a gas velocity, volume flow, or mass flow and substantially independently of pressure, temperature and, as the case may be, moisture content. By applying the theory of corona discharges, data relating to the flow-determining factors such as ion mobility and gas density can be derived from the known measured voltage and current values using electronic means. For example, the slope S of the I-V characteristic curve can be determined from the measured values of voltage V and current I.
REFERENCES:
patent: 3648517 (1972-05-01), Dorman
patent: 3835705 (1974-09-01), Hadjidjanian
Briody Thomas A.
Franzblau Bernard
Goldstein Herbert
Streeter William J.
U.S. Philips Corporation
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