Effects of Resistive Windscreens and Foam Inserts on The Acoustic Response of an In-Flow Phased Microphone Array

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Effects of Resistive Windscreens and Foam Inserts on The Acoustic Response of an In-Flow Phased Microphone Array

W. Clifton Horne / Nathan J. Burnside / Stephen D. Schery / Gary G. Podboy / Christopher J. Bahr / Daniel J. Stead / William M. Humphreys

Abstract

The effects of varying windscreen resistance and cavity foam treatments on the acoustic response of an in-flow phased microphone array have been characterized by recent experiments at ARC, GRC, and LaRC using common array and calibration source designs. New correction models have been developed and validated with results from recent impedance tube, anechoic chamber, and wind tunnel tests.

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Document information

Title :

Effects of Resistive Windscreens and Foam Inserts on The Acoustic Response of an In-Flow Phased Microphone Array

Contributors:

W. Clifton Horne (author) / Nathan J. Burnside (author) / Stephen D. Schery (author) / Gary G. Podboy (author) / Christopher J. Bahr (author) / Daniel J. Stead (author) / William M. Humphreys (author)

Conference:

AIAA SciTech Forum 2021 ; 2021 ; Nashville, TN , US

Publication date :

2020-06-08

Type of media :

Conference paper

Type of material :

No indication

Language :

English

Keywords :

phased microphone arrays , Acoustics , Wind tunnel aeroacoustics research