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A platform for research: civil engineering, architecture and urbanism
Phased arrays for ultrasonic investigations in concrete components
An innovative application of ultrasonic testing using phased arrays for concrete components was investigated. A low frequency ultrasonic phased array consisting of ten transducers was used. This configuration allowed the variation and control of the sound field directivity during the measurement. The measurements were carried out on concrete test specimens using a scanning laservibrometer in through transmission mode. The laboratory measurements were compared to theoretical calculations to investigate the influence of shape and dimension of the transducer on the resulting sound field patterns. The technique was successfully implemented to detect an ungrouted tendon duct in a concrete block.
Phased arrays for ultrasonic investigations in concrete components
An innovative application of ultrasonic testing using phased arrays for concrete components was investigated. A low frequency ultrasonic phased array consisting of ten transducers was used. This configuration allowed the variation and control of the sound field directivity during the measurement. The measurements were carried out on concrete test specimens using a scanning laservibrometer in through transmission mode. The laboratory measurements were compared to theoretical calculations to investigate the influence of shape and dimension of the transducer on the resulting sound field patterns. The technique was successfully implemented to detect an ungrouted tendon duct in a concrete block.
Phased arrays for ultrasonic investigations in concrete components
Gruppenstrahler für Ultraschalluntersuchungen von Betonbauteilen
Mielentz, Frank (author)
Journal of Nondestructive Evaluation ; 27 ; 23-33
2008
11 Seiten, 20 Bilder, 11 Quellen
Article (Journal)
English
Phased Arrays for Ultrasonic Investigations in Concrete Components
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