01 Apr

Speaker: Dr. Jennifer Michaels

Join us this Thursday for our final ASA spring 2013 lecture! The speaker will be ECE professor Dr. Jennifer Michaels. Below is a brief description of the lecture topic and her research background.

Guided Wave Structural Health Monitoring with Spatially Distributed Arrays

Ultrasonic waves have the potential to interrogate critical structures for damage, and many researchers are actively considering them for structural health monitoring (SHM) applications. Unlike nondestructive evaluation (NDE), where transducers interrogating a very small region are manually or automatically moved to obtain complete spatial coverage, in situ transducers for SHM are fixed in space. However, the constraints of spatially fixed transducers can severely limit the performance of such an SHM system, particularly in complex structures subjected to variable operational and environmental conditions. In this presentation, guided wave imaging methods are described for SHM using spatially distributed arrays; the context is current and past projects of the QUEST Laboratory at Georgia Tech. Results presented not only demonstrate recent progress but also point out the need for additional research and development efforts so that obstacles preventing widespread adoption of guided wave SHM systems can be overcome.

Date: Thursday, April 4th, 2013
Time: 11:00 am
Location: Love Bldg. Rm 109

Dr. Jennifer E. Michaels is a Professor in the School of Electrical and Computer Engineering at Georgia Tech and is serving as Interim Associate Chair of ECE Undergraduate Affairs. She received the Bachelor’s of Electrical Engineering degree from Georgia Tech in 1976, and began working in the field of ultrasonic nondestructive evaluation at the Hanford Engineering Development Laboratory in Richland, Washington. This work led to her graduate studies in Theoretical and Applied Mechanics at Cornell University, where she earned her M.S. and Ph.D. degrees in 1982 and 1984, respectively, and then spent a year as an IBM Postdoctoral Fellow. From 1985 until joining Georgia Tech in 2002, she worked in industry, first as co founder of a startup company, and later as Manager of Systems Development at Panametrics, Inc., a world leader in the development, fabrication and deployment of custom automated ultrasonic inspection systems. At Georgia Tech she is co-director of the QUEST (Quantitative Ultrasonic Evaluation, Sensing and Testing) Laboratory, where current projects relate to ultrasonic structural health
monitoring and nondestructive evaluation.

Professor Michaels is a member of the Acoustical Society of America and the American Society of Nondestructive Testing, and is a senior member of IEEE. She is currently serving as Associate Editor of Ultrasonics and The International Journal of Structural Health Monitoring. Her general research interests include signal processing, wave propagation, pattern recognition, detection and estimation, data fusion, sensing methods and measurement systems. Current and past sponsors of her work include AFRL, AFOSR, DARPA, HSARPA, NASA, NSF and industry.