Direct measurement of acoustic impedance for wind-noise-reduction pipe systems and components

2013 ◽  
Vol 134 (5) ◽  
pp. 4161-4161
Author(s):  
Chad M. Smith ◽  
Thomas B. Gabrielson
Keyword(s):  
Noise Reduction ◽  
Direct Measurement ◽  
Acoustic Impedance ◽  
Wind Noise ◽  
Pipe Systems ◽  
Wind Noise Reduction

scholarly journals Comparison and Validation of Acoustic Response Models for Wind Noise Reduction Pipe Arrays

2017 ◽  
Vol 34 (2) ◽  
pp. 401-414 ◽  
Author(s):  
Julien Marty ◽  
Stéphane Denis ◽  
Thomas Gabrielson ◽  
Milton Garcés ◽  
David Brown
Keyword(s):  
Noise Reduction ◽  
Acoustic Response ◽  
Detection Capability ◽  
Wind Noise ◽  
Response Models ◽  
Operational Conditions ◽  
Measurement Systems ◽  
International Monitoring ◽  
Wind Noise Reduction ◽  
Acoustic Responses

AbstractThe detection capability of the infrasound component of the International Monitoring System (IMS) is tightly linked to the performance of its wind noise reduction systems. The wind noise reduction solution implemented at all IMS infrasound measurement systems consists of a spatial distribution of air inlets connected to the infrasound sensor through a network of pipes. This system, usually referred to as “pipe array,” has proven its efficiency in operational conditions. The objective of this paper is to present the results of the comparison and validation of three distinct acoustic response models for pipe arrays. The characteristics of the models and the results obtained for a defined set of pipe array configurations are described. A field experiment using a newly developed infrasound generator, dedicated to the validation of these models, is then presented. The comparison between the modeled and empirical acoustic responses shows that two of the three models can be confidently used to estimate pipe array acoustic responses. This study paves the way to the deconvolution of IMS infrasound data from pipe array responses and to the optimization of pipe array design to IMS applications.

New Systems for Wind Noise Reduction for Infrasonic Measurements

2018 ◽  
pp. 91-124 ◽  
Author(s):  
Richard Raspet ◽  
John-Paul Abbott ◽  
Jeremy Webster ◽  
Jiao Yu ◽  
Carrick Talmadge ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Wind Noise ◽  
Wind Noise Reduction

scholarly journals Wind noise reduction in a non-porous subsurface windscreen

2012 ◽  
Vol 132 (3) ◽  
pp. 1905-1905 ◽  
Author(s):  
Allan J. Zuckerwar ◽  
Qamar A. Shams ◽  
Keith Knight
Keyword(s):  
Noise Reduction ◽  
Wind Noise ◽  
Wind Noise Reduction

Investigations of wind‐noise reduction at the infrasound test bed in Trafelberg, Austria.

2011 ◽  
Vol 129 (4) ◽  
pp. 2443-2443
Author(s):  
Thomas B. Gabrielson ◽  
Georgios Haralabus
Keyword(s):  
Noise Reduction ◽  
Test Bed ◽  
Wind Noise ◽  
Wind Noise Reduction
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