NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Direct Field Acoustic TestingThis paper presents an update to the methods and procedures used in Direct Field Acoustic Testing (DFAT). The paper will discuss some of the recent techniques and developments that are currently being used and the future publication of a reference standard. Acoustic testing using commercial sound system components is becoming a popular and cost effective way of generating a required acoustic test environment both in and out of a reverberant chamber. This paper will present the DFAT test method, the usual setup and procedure and the development and use of a closed-loop, narrow-band control system. Narrow-band control of the acoustic PSD allows all standard techniques and procedures currently used in random control to be applied to acoustics and some examples are given. The paper will conclude with a summary of the development of a standard practice guideline that is hoped to be available in the first quarter of next year.
Document ID
20090015876
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Larkin, Paul
(ARES Corp. United States)
Goldstein, Bob
(MSI United States)
Date Acquired
August 24, 2013
Publication Date
September 22, 2008
Publication Information
Publication: 25th Space Simulation Conference. Environmental Testing: The Earth-Space Connection
Subject Category
Space Sciences (General)
Distribution Limits
Public
Copyright
Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available