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    Portable goniometer measurement system with high angular receiver resolution

    Author
    Stoffle, Jolene
    View/Open
    177560_Stoffle_rpi_0185N_10944.pdf (2.824Mb)
    Other Contributors
    Xiang, Ning; Braasch, Jonas; Markov, Ivan;
    Date Issued
    2016-08
    Subject
    Architectural sciences
    Degree
    MS;
    Terms of Use
    This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.;
    Metadata
    Show full item record
    URI
    https://hdl.handle.net/20.500.13015/1778
    Abstract
    The diffuseness of a space greatly affects the function of and the perception of the quality of an enclosed space’s acoustics. The diffusion of a material can be measured by a goniometer, which is a semi-circular array of equidistant microphones. The use of a fixed array, one that deploys a number of microphones simultaneously over the entire semi-circle, to achieve a desired high angular resolution is typically impractical due to processing limitations of using a large number of microphones at once. By implementing a movable segment of the array that contains 16 microphones with 1.25 degree separation, a computationally inexpensive system can achieve high angular resolution and high signal levels. The high angular resolution results in polar response measurements with increased data points and thus increased accuracy of the measurement of diffuse reflections from an architectural surface. This improved high angular resolution system is a portable and efficient method for measuring diffusion, and its results can be applied to proving current theory as well as improving available data on manufactured diffusers.;
    Description
    August 2016; School of Architecture
    Department
    School of Architecture;
    Publisher
    Rensselaer Polytechnic Institute, Troy, NY
    Relationships
    Rensselaer Theses and Dissertations Online Collection;
    Access
    Restricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.;
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