A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sparse ultrasonic transducer array for structural health monitoring
A sparse array of ultrasonic transducers shows promise for structural health monitoring applications for both aluminum and concrete specimens. Waveform differences were computed between pre-flaw and post-flaw conditions, and processed to obtain accumulated energy curves. These curves are useful for determining the lead edge of the disturbance arrival from the flaws, and arrival times are consistent with the total path length from the transmitter to the flaw and back to the receiver. For the aluminum beam, this leading edge propagates at approximately the Rayleigh wave velocity. The asymptotic upper level of the accumulated energy curves increased with increasing defect size for both the concrete specimen and the aluminum beam. Further, the separation between the curves was approximately linear with diameter for the holes, and linear with total flaw area for the notches.
Sparse ultrasonic transducer array for structural health monitoring
A sparse array of ultrasonic transducers shows promise for structural health monitoring applications for both aluminum and concrete specimens. Waveform differences were computed between pre-flaw and post-flaw conditions, and processed to obtain accumulated energy curves. These curves are useful for determining the lead edge of the disturbance arrival from the flaws, and arrival times are consistent with the total path length from the transmitter to the flaw and back to the receiver. For the aluminum beam, this leading edge propagates at approximately the Rayleigh wave velocity. The asymptotic upper level of the accumulated energy curves increased with increasing defect size for both the concrete specimen and the aluminum beam. Further, the separation between the curves was approximately linear with diameter for the holes, and linear with total flaw area for the notches.
Sparse ultrasonic transducer array for structural health monitoring
Dünne Ultraschall-Gruppenstrahler zur Strukturüberwachung auf Unversehrheit
Michaels, T.E. (author) / Michaels, J.E. (author)
2004
8 Seiten, 10 Bilder, 6 Quellen
Conference paper
English
CFRP Structural Health Monitoring by Ultrasonic Phased Array Technique
| British Library Conference Proceedings | 2014
Structural Health Monitoring using an Embedded PZT-FBG Ultrasonic Sensor Array
| British Library Conference Proceedings | 2008
| British Library Conference Proceedings | 2020
Ultrasonic wave radiation from a linear phased array transducer
| British Library Conference Proceedings | 2004
Structure and Transducer Health Monitoring
| British Library Conference Proceedings | 2007