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by Zopeown last modified 2007-12-04 15:07

Applied Acoustics Lab is the acoustics research arm of the Structural Research Laboratory (SDRL), an internationally known vibration and acoustics research center under the MINE Department at UC. There have been many successful collaborative efforts between the lab and various industries, and national laboratories and agencies on research projects in vibration/noise control, structural modal analysis and noise identification.

The experimental acoustics testing area of the Applied Acoustics Lab at UC consists of a full anechoic chamber with an option to convert to semi-anechoic condition, suitable for test work in the frequency range of 100 Hz to 20,000 Hz. A comprehensive PC (NI Labview) based acoustic testing system that consists of 24 channels of real-time acoustic testing capability with sampling rate of up to 100,000 Hz, 16 microphones with preamps, a microphone calibrator, 2 tri-axial accelerometers, and a digital signal generator. A sound quality chamber equipped with high-speed processor, acoustic head and sound quality system is also available for recording, analyzing and synthesizing acoustic noise characteristics of environmental sound fields. The Applied Acoustics Lab is closely affiliated with the Structural Dynamics Research Lab (SDRL) in the department. Data acquisition and analysis equipment represents the primary asset of SDRL, with an equipment inventory of more than $3million in terms of the replacement cost. The equipment includes the capabilities to acquire up to 256 parallel channels of data at a frequency bandwidth of 12.5 kHz or 28 parallel channels of data at a frequency bandwidth of 50 kHz, and array of networked computers for data processing and simulations. Two large isolation foundations, an automotive lift, and a MTS four-poster provide great flexibility for any testing needs. The four-poster facility, which was obtained in 1998 as a part of the Ohio Board of Regents grant at the cost over $600,000, provides full capabilities for non-linear dynamics testing.

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