Benefits and applications of laser-induced sparks in real scale model measurements

Javier Gómez-Bolaños, Symeon Delikaris-Manias, Ville Topias Pulkki, Joona Eskelinen, Edward Hæggström, Cheol-Ho Jeong

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    Abstract

    The characteristics of using a laser-induced spark as a monopole source in scale model measurements were assessed by comparison with an electric spark and a miniature spherical loudspeaker. Room impulse responses of first order directivity sources were synthesized off-line using six spatially distributed sparks. The source steering direction was scanned across the horizontal and vertical plane to assess the origin of early reflections. The results confirm that the characteristics of the laser-induced spark outperform those of typical sources. Its monopole characteristics enable the authors to synthesize room responses of directional sources, e.g., to obtain directional information about reflections inside scale models.
    Original languageEnglish
    JournalJ A S A Express Letters
    Volume138
    Issue number3
    Pages (from-to)EL175-EL180
    ISSN1529-7853
    DOIs
    Publication statusPublished - 2015

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