"Measurement of transmission parameters of porous sound-absorbing materials. Part 3. How the test gear is applied" by Edmund Ramsay Wigan

Selected Works of Edmund Wigan

Article

Measurement of transmission parameters of porous sound-absorbing materials. Part 3. How the test gear is applied

Instrument Review (1965)

Edmund Ramsay Wigan, Technical Consultant to Muirheads Instruments

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Abstract

Testing conditions have been described (4). Time-delay and attenuation weremeasuredina30ft(9m) duct of considerable cross-section which had been filled with Fibreglass. Here these data are reduced to IX and per 2cm run. As there are on impedance measurements the quantity R in the equivalent network remains unknown, but as all the K-quantities have zero dimensions they can be derived from the dimensionless terms. Other examples are given in detail

Keywords

Acoustics,
Measurement

Disciplines

Acoustics, Dynamics, and Controls

Publication Date

Summer July, 1965

Citation Information

Edmund Ramsay Wigan. "Measurement of transmission parameters of porous sound-absorbing materials. Part 3. How the test gear is applied" Instrument Review (1965) p. 284 - 287
Available at: http://works.bepress.com/edmund-wigan/26/