Laboratory

 Put Innovation to the Ultimate Test

At Vibro-Acoustics®, we believe there's more to solving noise control problems in air-handling systems than simple off-the-shelf solutions. Why? Because after more than 40 years of designing, testing and manufacturing noise control products for a broad scope of applications, we've learned that good enough is never enough. We've learned that pushing the innovation envelope is the key to finding the ultimate solution. A solution that capitalizes on reliable products backed by reliable data.

To achieve this leadership commitment, Vibro-Acoustics® owns and operates the first ever NVLAP® (National Voluntary Laboratory Accreditation Program) accredited laboratory (Lab code 100424-0) for silencer test standard ASTM E 477. Now, Vibro-Acoustics®  has been awarded accreditation for the most recent standard, ASTM E 477-06a. Vibro-Acoustics also has NVLAP accreditation for ANSI S12.51 (reverberation room sound power testing) and ASTM C423 (sound absorption testing). And by learning from one generation to the next, this 4th generation facility is based on the comprehensive experience gained from the previous 3 generations.

 

Designed to meet a variety of critical requirements, our 20,000ft.3 (550m 3 ) reverberation room is capable of accurate and reliable testing to frequencies as low as 50 Hz.

Real world product solutions demand that our facility be flexible enough to meet the changing needs of an increasingly complex industry. The Vibro-Acoustics® lab was designed to overcome this challenge. From straight, transitional and elbow silencer testing to air handling system mock-ups, Vibro-Acoustics® has the products, the resources and the experience to make virtually any acoustic or aerodynamic design test an immediate reality.

(For more information on NVLAP, please see the NVLAP web page at http://ts.nist.gov/nvlap)

(ILLUSTRATION POINTS)

1. Main Reverberation Room: 20,000ft.3 (550m 3 ) has been qualified to ANSI S12.31. Sufficient volume to measure down to 50 Hz.

2. Main Fan Air Supply System: centrifugal fan generates 20,000 cfm flow with several inches of available external pressure.

3. Sound Source Plenum #1: plenum has loudspeakers for producing high energy sound for acoustically testing straight silencers in forward or reverse flow conditions.

4. Sound Source Plenum #2: similar to sound source plenum #1 for testing elbow silencers.

5. Testing Large Elbow Silencers: ductwork is part of test duct section with flow monitoring and pressure monitoring stations.

6. Air Handling Unit: {up to} 30,000 cfm ahu unit shown under test for discharge noise.

7. Main Test Duct Run: area where round or rectangular test specimens are installed for acoustical and aerodynamic testing.                                                                                                                                                                                                                                           

8. Scale Model Testing: up to 4,000 cfm fan & duct
system for testing smaller products and scale models.