Title :
Statics and dynamics of ultrasonic flowmeters as sensing elements for power control systems
Author :
Hamidullin, Vakif ; Malakhanov, Roman ; Khamidoullina, Elvira
Author_Institution :
State Univ. of Aerosp. Instrum., St. Petersburg, Russia
Abstract :
The work described herein is devoted to forming the scientific bases of designing ultrasonic flowmeters with high accuracy for process control. One of the most difficult and basic problems is to make sure that the flow profile is integrated fully over a wide dynamic range throughout the cross section of the pipe under conditions of pulsating, impulse or fast acting (transient) flows. Methods of solving this problem by using different shaped transducers and the mathematical dynamic models of these transducers and the measurement system are described. For the flowmeters with rectangular and ring shaped transducers measured inaccuracy was 0.5 %. The response time was 0.02 sec
Keywords :
flow measurement; flowmeters; power station control; ultrasonic transducers; 0.02 sec; US flowmeter dynamics; US flowmeter statics; impulse flows; nuclear power generation stations; power control systems; power generation plants; pulsating flows; rectangular transducers; ring shaped transducers; sensing elements; transient flows; ultrasonic flowmeters; Aerodynamics; Control systems; Dynamic range; Fluid flow measurement; Frequency measurement; Mathematical model; Phase measurement; Power control; Ultrasonic transducers; Ultrasonic variables measurement;
Conference_Titel :
Control Applications, 2001. (CCA '01). Proceedings of the 2001 IEEE International Conference on
Conference_Location :
Mexico City
Print_ISBN :
0-7803-6733-2
DOI :
10.1109/CCA.2001.973946
