Generation of monopole ultrasonic pulse from a circular source and it's on-axis pressure characteristics

Kouji Takasaki, Kazuhiko Imano, Hiroshi Inoue

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    The cycloid function voltage having no resonant frequency component was applied to a piezo-ceramic circular transducer to generate the monopole ultrasonic pulse. The on-axis pressure characteristics of the monopole ultrasonic pulse with different pulse widths were observed. It was found that the onset distance of the decrease in amplitude became shorter as the pulse width increased. The distance of the onset of decrease in the amplitude of sound is proposed as a practical limit of the near field for the monopole ultrasonic pulse.

    Original languageEnglish
    Pages (from-to)3049-3050
    Number of pages2
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume37
    Issue number5 SUPPL. B
    DOIs
    Publication statusPublished - 1998 May

    Keywords

    • Cycloid function voltage
    • Direct wave
    • Edge wave
    • Limit of near field
    • Monopole ultrasonic pulse

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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