Acoustic and Geophysical Measurement of Infrasound from Wind Farm Turbines

Journal Article

Title: Acoustic and Geophysical Measurement of Infrasound from Wind Farm Turbines
Authors: Hepburn, H.
Publication Date:
June 01, 2006
Journal: Canadian Acoustics
Volume: 34
Issue: 2
Pages: 51-67
Publisher: Canadian Acoustical Association
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Document Access

Website: External Link

Citation

Hepburn, H. (2006). Acoustic and Geophysical Measurement of Infrasound from Wind Farm Turbines. Canadian Acoustics, 34(2), 51-67.
Abstract: 

An experiment was conducted to measure and characterize infrasound (and higher frequency acoustic energy) from turbines at a wind farm in Southern Alberta. Simultaneous telemetry and point measurements were acquired from three sensor types: low frequency geophones, acoustic microphones, and a precision sound analyzer. Measurements were recorded for three wind states: low, medium, and high. Down wind telemetry measurements were recorded for thirty (30) continuous 50m offsets, up to a distance of 1450 m from the wind farm. Point measurements, coincident with the telemetry measurements, were acquired with a low frequency precision sound analyzer for two offsets: 50m and 1000m from the turbines. The same measurements were recorded with the turbines on, and with the turbines off. The low frequency results of the experiment are presented in this paper. 

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