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The Reverberant Acoustic Test Facility has 36 nitrogen-driven horns to simulate the high noise levels that are experienced during a space vehicle launch and supersonic ascent conditions. The RATF is capable of an overall sound pressure level of 163 dB within a 101,500-cubic-foot (2,870 m 3 ) chamber.
Direct-field acoustic testing, or DFAT®, is a technique used for acoustic testing of aerospace structures by subjecting them to sound waves created by an array of acoustic drivers. [1] The method uses electro-dynamic acoustic loudspeakers, arranged around the test article to provide a uniform, well-controlled, direct sound field at the surface ...
In the aerospace industry, acoustic chambers are the main facilities for such tests. A chamber is a reverberant room that creates a diffuse sound field and is composed of an empty volume (from 1 m 3 to 2900 m 3 ) and a multifrequency sound generation system.
ISITE Acoustic Test Facility - This facility was designed and commissioned by CSIR-National Aerospace Laboratories, Bangalore, for ISRO Satellite Centre (ISAC), Bangalore, on 7 April 2011. A 1500 Cu.m. Isolated Reverberation Chamber, which can qualify satellites up to 156 dB in Nitrogen atmosphere, is the largest and one-of-its kind in India.
NASA Glenn Aero-Acoustic Propulsion Laboratory Nozzle Acoustic Test Rig [52] Diameter 1,346 mm (53 in) Acoustic testing of exhaust nozzles, subsonic United States Free-jet NASA Glenn Engine Components Research Lab [53] United States NASA Glenn Hypersonic Test Facility [54] Hypersonic United States NASA Glenn Icing Research Tunnel [51] 3 m × 2 ...
Riverbank Acoustical Laboratories (RAL), (often referred to as Riverbank or Riverbank Labs), is a NVLAP accredited acoustical testing agency founded by George Fabyan in 1913. [1] [independent source needed] The testing service remains a highly respected source of independent acoustical materials testing.
Pictures and description of an acoustic anechoic chamber Archived 4 March 2019 at the Wayback Machine; Anechoic Chambers, Past and Present; How RF Anechoic Chambers Work Archived 17 April 2012 at the Wayback Machine; Video tour of an EMC/RF Test facility. Including the largest anechoic test chamber in the southern hemisphere; Some examples
Analysis of sound and acoustics plays a role in such engineering tasks as product design, production test, machine performance, and process control. For instance, product design can require modification of sound level or noise for compliance with standards from ANSI, IEC, and ISO. The work might also involve design fine-tuning to meet market ...