Ultrasonic mark flowmeters for measuring low liquid flowrates in small diameter pipes.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F01%3A03119257" target="_blank" >RIV/68407700:21230/01:03119257 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Ultrasonic mark flowmeters for measuring low liquid flowrates in small diameter pipes.

Original language description

Contemporary ultrasonic liquid flowmeters based on usual methods are unable to measure small flowrates (1 - 100 ml/s) in narrow (&raquo;1 cm in diameter) opaque pipes. Under such conditions, methods based on measuring drift velocity of a defined part ofthe liquid with artificially changed ultrasonic parameters (sound velocity and/or attenuation) may be used. A change is induced in one place of the pipe, and this change is detected in another place downstream. One of alternatives is a flowmeter based onchecking temperature changes of ultrasonic velocity in the flowing liquid.

Czech name

Ultrazvukové značkovací prútokoměry pro měření malých průtoků kapalin v tenkých trubicích.

Czech description

Není k dispozici

Type

A - Audiovisual production

CEP classification

BI - Acoustics and oscillation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2001

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

88-88387-01-3

Place of publication

Rome

Publisher/client name

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Version

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Carrier ID

5B.06.3