Accuracy of Fiber Optic Probe Hydrophone Underwater Ultrasonic Cavitation Environment

Akikazu Waki, Yuhei Asuka, Minoru Yamamoto, Yoshikazu Koike

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ultrasonic cavitation phenomena is often employed in manufacturing process like cleaning machine, chemical reactor and so on. In such a manufacturing process, it is necessary to monitor ultrasonic intensity from ultrasonic transducer. The authors proposed that a reflection type fiber optical probe hydrophone (FOPH) is suitable for underwater ultrasonic sound pressure measurement under ultrasonic cavitation environment. Since FOPH consists of an optical glass fiber, FOPH has durability and wide frequency range. However, accuracy of FOPH is not clear due to existence of cavitation bubbles. Authors compare the output of FOPH with that of the piezoelectric hydrophone (PZT) from 20 kHz to 100 kHz. There are differences in the fundamental and third harmonic waves between FOPH and PZT. In this report, we investigate diffraction influence of probe point using finite element method (FEM). As a result, it is found that frequency characteristics doesn't appear in FOPH even if diffraction effect is considered. Differing from FOPH output, diffraction effect gives great influence on PZT output.

Original languageEnglish
Title of host publicationIECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
ISBN (Electronic)9798350331820
DOIs
Publication statusPublished - 2023
Event49th Annual Conference of the IEEE Industrial Electronics Society, IECON 2023 - Singapore, Singapore
Duration: 2023 Oct 162023 Oct 19

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
ISSN (Print)2162-4704
ISSN (Electronic)2577-1647

Conference

Conference49th Annual Conference of the IEEE Industrial Electronics Society, IECON 2023
Country/TerritorySingapore
CitySingapore
Period23/10/1623/10/19

Keywords

  • cavitation
  • fiber optic probe hydrophone
  • hydrophone
  • sonochemistry
  • sound pressure measurements
  • ultrasonic cleaning

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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