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A Study of Phased Array Ultrasonic Velocity Profile Monitor for Flow Rate Measurement

[+] Author Affiliations
Takuya Fukumoto, Keisuke Tsukada, Tomonori Ihara, Nobuyoshi Tsuzuki, Hiroshige Kikura

Tokyo Institute of Technology, Tokyo, Japan

Paper No. ICONE21-16601, pp. V006T16A051; 6 pages
doi:10.1115/ICONE21-16601
From:
  • 2013 21st International Conference on Nuclear Engineering
  • Volume 6: Beyond Design Basis Events; Student Paper Competition
  • Chengdu, China, July 29–August 2, 2013
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5583-6
  • Copyright © 2013 by ASME

abstract

A new ultrasonic velocity profile measurement system with a phased array sensor was developed for accurate flow rate measurements. This measurement system employs phased array technique to reduce noise from multiple reflections which occurs in a wedge. However, phased array technique has some difficulties — one of them is about grading lobes. Thus, the array sensor was designed to reduce the grading lobes using simple calculations. Performance of the manufactured array sensor was evaluated by experimental measurements of sound pressure distribution emitted from the array sensor, and optimal parameters to control the array sensor were obtained. Hardware and software of the ultrasonic velocity profile measurement system with a phased array sensor were also developed. The software is based on ultrasonic Doppler method. Velocity profiles of horizontal pipe flow were measured using the developed system, and the availability of the system applying a phased array sensor was confirmed.

Copyright © 2013 by ASME
Topics: Flow (Dynamics)

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