%0 Journal Article
%T Three-Dimensional Velocity Distribution Measurement Using Ultrasonic Velocity  Profiler with Developed Transducer
%A Naruki Shoji
%A Hiroshige Kikura
%A Hideharu Takahashi
%A Wongsakorn Wongsaroj
%J Journal of Flow Control, Measurement & Visualization
%P 32-55
%@ 2329-3330
%D 2022
%I Scientific Research Publishing
%R 10.4236/jfcmv.2022.101003
%X This study describes an ultrasonic velocity profiler that uses a <span style=\"white-space:normal;\"><span style=\"font-family:;\" \"=\"\">new ultrasonic array transducer with unique 5-element configuration</span></span><span style=\"white-space:normal;\"><span style=\"font-family:;\" \"=\"\">, with all five elements acting as transmitters and four elements as receivers. The receivers are designed to reduce the amount of uncertainty. As the fluid moves through this setup, four Doppler frequencies are obtained. The multi-dimensional velocity information along the measurement line can be reconstructed. The transducer has a compact geometry suitable for a wide range of applications, including narrow flow areas. The transducerĄ¯s basic frequency and sound pressure are selected and evaluated to be compatible with the application. First, to confirm the measurement ability, the measurement of the developed system in two-dimensional flow is validated by comparing it to the theoretical data. The uncertainty of measurement was within 15%. Second, the three-dimensional measurement in turbulent and swirling flow is proved experimentally to check the applicability of the proposed technique.</span></span>
%K Doppler Frequency
%K Liquid Velocity
%K Three-Dimensional Measurement
%K Transducer Design
%K Ultrasonic
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=114614