next up previous contents index
Next: 70 Investigation of Aging Up: Proposed Level 4 Design Previous: 68 Investigation of RailBAM   Contents   Index

69 Development of a low frequency windscreen for gust attenuation of blast noise measurement microphones*

Dr Peter Teague (Vipac) and Dr Anthony Zander
This project is aimed at developing a low cost wind noise attenuator for microphones used in monitoring low frequency blasting noise. The design must provide significant attenuation of wind noise while providing minimal attenuation of the acoustic signal. The design will also need to be robust and produce no significant rain noise. The work will be focussed on examining the mechanisms of flow noise and developing models to guide the design work. Experiments will also be conducted to quantify the relationships between various wind noise shield geometries and material types.
Industrial Sponsor:
Vipac Engineers & Scientists Pty Ltd.

Ben Cazzolato