Roman, VitaliiMatiko, FedirKovalchuk, Ivanna2018-04-122018-04-122017-12-232017-12-23Roman V. Hydrodynamic flow measurement error of ultrasonic flowmeters / Vitalii Roman, Fedir Matiko, Ivanna Kovalchuk // Litteris et Artibus : proceedings, 23–25 November, 2017. — Lviv : Lviv Polytechnic Publishing House, 2017. — P. 192–193. — (7th International academic conference «Electric power engineering & control systems 2017» (EPECS-2017)).978-966-941-108-2https://ena.lpnu.ua/handle/ntb/40537In this work the essence of hydrodynamic flow measurement error of ultrasonic flowmeter (USM). The methods of eliminating this error are analyzed. One of these methods is considered in detail – optimization of the location schemes of chordal acoustic paths (APs) of USM. The optimization is performed on the basis of the analytical-empirical power law of the distribution of the velocity of the undistorted flow. As a result of the work, the authors calculated the optimal location of the APs for chordal schemes of two- and three-path USMs. It was established that optimization of the location schemes of APs chordal USM allows to reduce the hydrodynamic flow measurement error to a value of 0.05 %(for USMwith two hordal APs) and 0.1 %(for USMwith three chordal APs). The developed approach is convenient when designing multipath USM and their research in laboratory conditions.192-193enultrasonic flowmeterhydrodynamic flow measurement errorpower lawacoustic pathslocation schemeConference Abstract© Національний університет “Львівська політехніка”, 20172Roman V. Hydrodynamic flow measurement error of ultrasonic flowmeters / Vitalii Roman, Fedir Matiko, Ivanna Kovalchuk // Litteris et Artibus : proceedings, 23–25 November, 2017. — Lviv : Lviv Polytechnic Publishing House, 2017. — P. 192–193. — (7th International academic conference «Electric power engineering & control systems 2017» (EPECS-2017)).