Acoustic Testing

IAR specializes in the measurement of airborne noise as emitted by items under test in order to qualify these items as meeting applicable noise levels or standards (including MIL-STD and proprietary). Overall, linear, weighted and intensity measurements can be made on-site in IAR's operation bay or at remote locations as required. Additionally, acoustic measurements can be carried out in conjunction with vibration monitoring and data acquisition. Tests have been successfully completed for commercial, industrial and military customers.

Acoustic testing equipment:

• transportable signal analyzers (digital, FFT, analog)
• multi-channel digital recording or acoustic data
• pressure response and free field microphones
• single and triple axis noise intensity probes
• other specialized audio instrumentation
• large operation/preparation bay (clean room class 100,000)
• reverberant chamber 536 cubic meters
• low background noise levels in testing area(s)
• concrete seismic isolation pads.

Automatic spectrum control software:

• digitally controlled electronic noise source and spectrum shaper
• Bruel and Kjaer 2033 analyzer
• Bruel and Kjaer 2131 analyzer
• Bruel and Kjaer 2133 analyzer
• multi-channel high speed digital recording
• accelerometers and charge amplifiers
• microphones and measuring amplifiers
• Zonic 7000 multi-channel data acquisition and analysis system
• HP 3565S multi-channel data acquisition and analysis system.

Related Information

Institutes:

• NRC Institute for Aerospace Research