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Bruel and Kjaer 4944 Microphone Grid Frequency Response Function System IdentificationBr el & Kjaer (B&K) 4944B pressure field microphone was judiciously selected to measure acoustic environments, 400Hz 50kHz, in close proximity of the nozzle during multiple firings of solid propellant rocket motors. It is well known that protective grids can affect the frequency response of microphones. B&K recommends operation of the B&K 4944B without a protective grid when recording measurements above 10 to 15 kHz.
Document ID
20100021012
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Bennett, Reginald (Jacobs Technologies Engineering Science Contract Group Houston, TX, United States)
Lee, Erik (Jacobs Technologies Engineering Science Contract Group Houston, TX, United States)
Date Acquired
August 24, 2013
Publication Date
April 19, 2010
Subject Category
Acoustics
Report/Patent Number
M10-0462
Report Number: M10-0462
Meeting Information
Meeting: 159th Meeting of the Acoustical Society of America
Location: Baltimore, MD
Country: United States
Start Date: April 19, 2010
End Date: April 23, 2010
Funding Number(s)
CONTRACT_GRANT: NNM05AB50C
Distribution Limits
Public
Copyright
Public Use Permitted.

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