PAC - Acoustic Emission

"Acoustic Emission Monitor for Drive System Coupling Crack Detection" Contract Awarded to PAC

Princeton Junction, NJ, June 2003-The Department of the Navy, Naval Air Systems Command (NAVAIR), recently awarded Physical Acoustics Corporation (PAC) a Phase I Small Business Innovation Research (SBIR) contract; "Acoustic Emission Monitor for Drive System Coupling Crack Detection."

The objective of this Phase I proposal is to present Physical Acoustics Corporation's (PAC) ability to design and develop a reliable, "near" real time monitoring methodology for early detection of cracks in diaphragm-type couplings used in aircraft and engine drive systems. The "near" real time AE crack detection system is intended to demonstrate the feasibility of using an on-line AE crack detection system to provide suitable advance warning to pilots and maintenance personnel to indicate the presence of cracks and to preclude catastrophic failure. The proposed methodology will tailor PAC's state-of-the-art Acoustic Emission sensing, data acquisition, and Neural Network Pattern Recognition technique. The development work for Phase I will consist of designing and demonstrating an autonomous adaptive procedure to recognize and classify damage in diaphragm-type coupling from AE data in "near" real time.

Leading this project, as Program Manager, is Major (retired) Richard D. Finlayson, Director of PAC's Research, Engineering Applications, Certification and Training Group (REACT). Dr. Valery Godinez, REACT's Research and Applications Group Leader, Dr. Fang Shu, Research Scientist, and Balachander Lakshminarayan, Research Engineer.

Physical Acoustics Corporation is the worldwide market leader in the development and manufacture of Acoustic Emission Testing (AE) and Nondestructive Testing (NDT) instrumentation for computer-aided inspection and testing of today's global industrial infrastructure. The Company's products and services are used in a wide array of applications including: monitoring & inspecting the quality, integrity & safety of gas and oil pipelines, petrochemical vessels and other key structures within oil and chemical plants, large oil storage tanks, strategic components of nuclear and fossil fuel plants, metal and concrete bridges, aerospace vehicles, and many other applications relating to environmental safety. For specific technical information regarding this contract, please contact Physical Acoustics Corporation at 195 Clarksville Road, Princeton Junction, NJ 08550-5303, attention Richard D. Finlayson, 609-716-4000,

195 Clarksville Road · Princeton Jct, NJ 08550 · USA
Tel: +1.609.716.4000 · Fax: +1.609.716.0706

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