Simulations of acoustic properties for the nasal and paranasal cavities and attempts of validation by acoustic measurements

DOI

Bibliographic Information

Other Title
  • 鼻副鼻腔の音響特性の計算と計測による検証の試み

Abstract

<p>The finite-difference time-domain method can calculate acoustic properties of the geometrical model of the nasal and paranasal cavities extracted from CT data. The calculation results are validated by acoustic measurements of the physical model constructed from the same CT data. The measurements, however, have been unsuccessful. This is because measurement signals input through the nostrils are not observed at the glottis with a sufficient signal-to-noise ratio. To overcome this problem, an exponential horn which can supply measurement signals with high amplitude and a physical model with thick wall to depress the wall vibration were introduced in the present study. As a result, a transfer function was successfully measured, to evaluate the calculated one. The evaluation implied that fine structure of the paranasal cavities could not be reproduced with sufficient accuracy in the physical model.</p>

Journal

Details 詳細情報について

  • CRID
    1390299151931062528
  • DOI
    10.60274/asjsc.sc-2023-7
  • ISSN
    27582744
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Allowed

Report a problem

Back to top