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Chang Liu
at Carnegie Mellon Univ
SPIE Involvement:
Author
Publications (4)
Proceedings Article | 10 April 2014 Paper
A robust baseline removal method for guided wave damage localization
Chang Liu, Joel Harley, Mario Bergés, David Greve, Warren Junker, Irving Oppenheim
Proceedings Volume 9061, 90611K (2014) https://doi.org/10.1117/12.2045577
KEYWORDS: Waveguides, Ultrasonics, Transducers, Temperature metrology, Wave propagation, Signal processing, Signal to noise ratio, Ferroelectric materials, Aluminum, Damage detection
Proceedings Article | 8 March 2014 Paper
ASR damage detection in concrete from ultrasonic methods
Peng Gong, Mark Patton, David Greve, Joel Harley, Warren Junker, Chang Liu, Irving Oppenheim
Proceedings Volume 9061, 90610E (2014) https://doi.org/10.1117/12.2045645
KEYWORDS: Signal attenuation, Ultrasonics, Damage detection, Cements, Transducers, Signal detection, Fourier transforms, Chemical reactions, Silica, Nondestructive evaluation
Proceedings Article | 19 April 2013 Paper
Singular value decomposition for novelty detection in ultrasonic pipe monitoring
Chang Liu, Joel Harley, Yujie Ying, Irving Oppenheim, Mario Bergés, David Greve, James Garrett
Proceedings Volume 8692, 86921R (2013) https://doi.org/10.1117/12.2009891
KEYWORDS: Ultrasonics, Environmental sensing, Waveguides, Temperature metrology, Damage detection, Structural health monitoring, Lithium, Digital filtering, Sensors, Signal processing
Proceedings Article | 3 April 2012 Paper
Ultrasonic monitoring of a pipe under operating conditions
Chang Liu, Joel Harley, Nicholas O'Donoughue, Yujie Ying, Martin Altschul, James Garrett, José M. Moura, Irving Oppenheim, Lucio Soibelman
Proceedings Volume 8345, 83450B (2012) https://doi.org/10.1117/12.915040
KEYWORDS: Ultrasonics, Transducers, Signal detection, Environmental sensing, Ferroelectric materials, Received signal strength, Waveguides, Signal processing, Temperature metrology, Receivers
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