Mathematical Modeling and Experimental Study of Impulse Lines of Flowmeters

Roman Fedoryshyn1 romanfedoryshyn [at] yahoo.com
Fedir Matiko2
Ihor Kostyk3
Khrystyna Stefurak4
  1. Department of Automation of Heat and Chemical Processes, Lviv Polytechnic National University, Ukraine, Lviv, S. Bandery street 12.
Abstract 

Mathematical model of an impulse line with a pressure transducer (PT) was built. This model provides the possibility to simulate and analyze the transient processes in an impulse line. Experimental studies of the step response curves of an impulse line with PT were carried out with application of a high-frequency analog-to-digital converter of the pressure signal in the PT chamber. The simulated step response curves were compared to the experimental ones. Maximum relative deviation of the simulated step response curves from the experimental ones is 6.3 %.

References 

[1]  I. V. Kostyk and F. D. Matiko, “Doslidzhennia dynamichnykh kharakterystyk pnevmatychnykh  linii vymiriuvalnykh peretvoriuvachiv tysku” [“Investigation of Dynamic Characteristics of Impulse Lines of Pressure Measuring Transducers”], Metody ta prylady kontroliu yakosti – Methods and devices for quality control, No.1(32), pp.83-92, 2014.

[2]  R. M. Fedoryshyn, Y. V. Hren and F. D. Matiko, “Modeliuvannia dynamichnykh kharakterystyk pnevmatychnykh linii vytratomiriv zminnoho perepadu tysku” [“Simulation of Dynamic Characteristics of Impulse Lines of Differential Pressure Flow Meters”], Visnyk NU”LP”: Teploenerhetyka. Inzheneriia dovkillia. Avtomatyzatsiia – Bulletin of LPNU: Heat Power Engineering. Environmental Engineering. Automation, No.659, pp.73-78, 2009.