Investigation of the sound field of phased array using the photoelastic visualization technique and the accurate FEM

Sho Washimori, Tsuyoshi Mihara, Hatsuzo Tashiro

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In this study, we tried to obtain an accurate ultrasonic sound field of the commercial phased array system. For this purpose, the experimental photoelastic ultrasonic visualization system was improved to evaluate a phased array system and the analytical special large-scale finite element method (FEM) code for ultrasonic transmission was applied. As the results, an actual sound field of phased array system was much more complicate than that of the conventional industrial assumption based on a simple superposition. One of the causes of the difference might be the accuracy of the directivity for each element in the array transducer. Thus, the combination of photoelastic visualization method and FEM analysis was useful for the accurate sound field investigation of the phased array measurement.

Original languageEnglish
Pages (from-to)631-635
Number of pages5
JournalMaterials Transactions
Volume53
Issue number4
DOIs
Publication statusPublished - 2012

Keywords

  • Directivity
  • Finite element method
  • Phased array
  • Photoelastic visualization
  • Sound field

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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