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Abstract
Dual matrix transmit-receive longitudinal arrays have been shown to have an improved signal to noise ratio in near field zone which makes them the most suitable array configuration for inspection of near surface defects. This study aims to compare the performance of different configurations for transmit-receive longitudinal matrix arrays. For this purpose, 4 matrix configurations of 2×32, 4×16, 4×32, and 8×16 elements are investigated using CIVA modelling. The array operating frequencies investigated are either 5 MHz or 10 MHz. Different natural focal depths for these TRL arrays are considered in the model. For each configuration, the ability to steer and skew the beam is examined through CIVA modelling of the inspection of flat bottom holes extended to a few millimeters under the surface. It is found that the focusing for near surface areas is more efficient using the 4×16 and 8×16 elements configurations.
Original language | English |
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Number of pages | 4 |
Publication status | Published - 14 Jul 2019 |
Event | 46th Annual Review of Progress in Quantitative Nondestructive Evaluation - Portland, Portland, United States Duration: 14 Jul 2019 → 18 Jul 2019 Conference number: 46 https://event.asme.org/QNDE-2019 http://event.asme.org/QNDE-2019 |
Conference
Conference | 46th Annual Review of Progress in Quantitative Nondestructive Evaluation |
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Abbreviated title | QNDE 2019 |
Country/Territory | United States |
City | Portland |
Period | 14/07/19 → 18/07/19 |
Internet address |
Keywords
- transmit-receive longitudinal (TRL) matrix arrays
- model-based ultrasonic studies
- non-destructive testing/evaluation
- matrix ultrasonic phased arrays
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Dive into the research topics of 'A model-based study of transmit-receive longitudinal arrays for inspection of subsurface defects'. Together they form a unique fingerprint.Activities
- 2 Oral presentation
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Robotically Enabled NDT/E
Wathavana Vithanage, R. K. (Speaker)
2019Activity: Talk or presentation types › Oral presentation
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Automated In-Process Metal Additive Inspection
Wathavana Vithanage, R. K. (Invited speaker)
2019Activity: Talk or presentation types › Oral presentation