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In-Flow Acoustic SensorAn acoustic sensor for measuring acoustic waves contained in fluid flow flowing over the sensor is introduced. The acoustic sensor reduces any unwanted self-noise associated with the flowing fluid by providing a nose cone having proper aerodynamic properties and by positioning the diaphragm of a microphone of the sensor at a location where any unwanted noise is at a relatively low level. The nose cone has a rounded, blunt or even sharp tip neither of which creates any major disturbances in the flowing fluid which it intercepts.
Document ID
19960034350
Acquisition Source
Ames Research Center
Document Type
Other - Patent
Authors
Allen, Christopher S.
(Sterling Software, Inc. Moffett Field, CA United States)
Date Acquired
August 17, 2013
Publication Date
December 19, 1995
Subject Category
Acoustics
Accession Number
96N30212
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-Case-ARC-12001-1|US-Patent-5,477,506
Patent Application
US-Patent-Appl-SN-149896
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