Title :
Interference averaging of velocity profile by multipath ultrasonic flowmeters
Author :
Hamidullin, Vakif K.
Author_Institution :
State Acad. of Aircraft & Space Instr., St. Petersburg, Russia
Abstract :
This paper discusses improving the effectiveness of velocity profile averaging of flows by simultaneous operation of multiple acoustic paths with wide radiation pattern transducers. In other words, interference averaging of velocity profile was investigated. There are problems connected with optimizing flowcell construction, interrogating signals and developing algorithms for processing received signals. Experiments were conducted with a specially constructed flowcell having a distribution of acoustic paths. Disk-shaped and ring-shaped piezoelements with wide radiation (receiving) pattern were used. Results of numerous experiments are presented
Keywords :
acoustic signal processing; acoustic wave interference; flow measurement; flowmeters; piezoelectric transducers; pipe flow; ultrasonic applications; ultrasonic transducer arrays; underwater sound; disk-shaped piezoelements; flowcell construction optimization; interference averaging; multipath ultrasonic flowmeters; multiple acoustic paths; received signal processing algorithms; ring-shaped piezoelements; signal interrogation; velocity profile; wide radiation pattern transducers; Acoustic transducers; Aerospace electronics; Aircraft; Dynamic range; Fluid flow measurement; Instruments; Interference; Phase locked loops; Phase measurement; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1996. Proceedings., 1996 IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-3615-1
DOI :
10.1109/ULTSYM.1996.584163
