Evaluation of Measurement Errors of the Expansion Coefficient for Standard Narrowing Units Under the Operating Conditions of Gas-Metering Stations

Autor:	V. I. Chesnokov, B. A. Ipolitov
Rok vydání:	2019
Předmět:	Observational error Applied Mathematics Venturi effect Nozzle Compressibility Metering mode Differential pressure Mechanics Instrumentation Mathematics
Zdroj:	Measurement Techniques. 62:259-267
ISSN:	1573-8906 0543-1972
DOI:	10.1007/s11018-019-01614-0
Popis:	We consider a version of the differential pressure method with various Venturi nozzles and tubes used as standard narrowing devices. By using the formula for the expansion coefficient applied in this version of the method as a correction for the compressibility of the medium, we estimate the measurement error of the expansion coefficient under of conditions of gas-metering stations. We also perform the comparative analysis of the actual parameters of accuracy and the parameters regulated by standards in measuring the expansion coefficients for various narrowing units.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8b55f1bb9ff504c577ea58a7ad203967 https://doi.org/10.1007/s11018-019-01614-0 Zobrazit plný text záznamu Full text from SpringerLink