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2 190 834

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IPC

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Application

2000127078/28, 2000-10-24

(24)

Start date

2000-10-24

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Actual filing date

2000-10-24

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Published

2002-10-10

(72)

Inventor

Karmazinov F.V.Gumen S.G.Dikarev V.I.Kojnash B.V.

(73)

Holder

Karmazinov Feliks VladimirovichGumen Sergej Grigor'EvichDikarev Viktor IvanovichKojnash Boris Vasil'Evich

ULTRASONIC SINGLE-CHANNEL PHASE SWITCH-FREE METHOD MEASURING FLOW RATE Russian patent published in 2002 - IPC

Abstract RU 2190834 C2

FIELD: automatization of test and control over flow rate of liquid and gaseous substances in technological processes in chemical, oil and other branches of industry. SUBSTANCE: uninterrupted various-frequency oscillations are transmitted in opposition over acoustic channel. Second harmonics of main and auxiliary frequencies are extracted across outputs of both directions, phase difference is found for them and is employed to judge about value of flow rate. EFFECT: enhanced authenticity and reliability of measurement of flow rate by way of additional measurement of phase difference on second harmonic of auxiliary frequency. 1 dwg

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RU 2 190 834 C2

Authors

Karmazinov F.V.

Gumen S.G.

Dikarev V.I.

Kojnash B.V.

Dates

2002-10-10—Published

2000-10-24—Filed

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