Numerical transducer modelling

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    Abstract

    Numerical modelling is of importance for the design, improvement and study of acoustic transducers such as microphones and accelerometers. Techniques like the boundary element method and the finite element method are the most common supplement to the traditional empirical and analytical approaches. However, there are several difficulties to be addressed that are derived from the size, internal structure and precision requirements that are characteristic of these devices. One of them, the presence of very close surfaces (e.g. the microphone diaphragm and back-electrode), leads to machine precision errors and instabilities in the computations of numerical solutions. An investigation to deal with this narrow-gap problem has been carried out.
    Original languageEnglish
    Title of host publicationProceedings of Sixth International Congress on Sound and Vibration
    Place of PublicationLyngby
    PublisherDepartment of Acoustic Technology, Technical University of Denmark
    Publication date1999
    Pages563-570
    Publication statusPublished - 1999
    Event6th International Congress on Sound and Vibration - Kgs. Lyngby, Denmark
    Duration: 5 Jul 19998 Jul 1999
    Conference number: 6

    Conference

    Conference6th International Congress on Sound and Vibration
    Number6
    CountryDenmark
    CityKgs. Lyngby
    Period05/07/199908/07/1999

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