Acoustics facilities in RI
3 facilities
Acoustic Wind Tunnel
Newport, RI
The Acoustic Wind Tunnel is a large, quiet, low mach number facility specifically designed for basic hydrodynamic and hydroacoustic investigations. Construction techniques and design flexibility allow the tunnel to support a multitude of test configurations. The test volume is acoustically anechoic and completely isolated, resulting in extremely low background noise levels. These features permit measurement of radiated noise forcing functions at full-scale Reynolds numbers in completely uncontaminated flow. The facility maintains standard air parameters and can be converted from closed flow to open flow using external louvers. Large access doors, cranes, and a flexible testing arrangement make this facility well suited for dual-use projects such as automobile or environmental flow studies.
Anechoic Chamber
Newport, RI
The Anechoic Chamber provides a pure environment that is free of all external noise and vibration. The chamber is a research tool aimed specifically at advanced studies in active noise cancellation, directivity, and measurements of sound power levels. The unique combination of acoustic and radio frequency measurement capabilities within a common enclosure allows the entire range of signatures to be easily established in a cost-effective manner. The versatility designed into this facility allows investigations into such areas as environmental/community noise studies, consumer appliance noise, automobile noise, and commercial product airborne sound certification.
Quiet Water Tunnel
Newport, RI
Overview: The Quiet Water Tunnel (QWT) is a hydro-acoustic research facility designed for measurement of non-acoustic turbulent flow noise (pseudosound) and flow-induced acoustic noise. The QWT is located in Building 122 at the Naval Undersea Warfare Center Division Newport, Rhode Island. The facility is acoustically quiet above 30 Hz thus allowing measurements of "low wavenumber" turbulent wall pressure levels in the absence of significant ambient acoustic noise. Fresh water is used as the working fluid (salt water is not used in the system).