Abstract
The ultimate limit on ultrasonic defect detectability is the coherent noise due to material backscatter. A model of such noise in ultrasonic array images is developed based on the single scattering assumption. The implications of the model are discussed and supported with some experimental examples. In the case of a copper specimen, it is shown that an improvement in signal to coherent noise ratio of over 30 dB can be obtained by optimization of imaging parameters.
Original language | English |
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Title of host publication | REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 30A AND 30B |
Editors | DO Thompson, DE Chimenti |
Place of Publication | MELVILLE |
Publisher | American Institute of Physics (AIP) |
Pages | 890-897 |
Number of pages | 8 |
ISBN (Print) | 978-0-7354-0888-3 |
DOIs | |
Publication status | Published - 2011 |
Event | 37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010) - San Diego, CA, United States Duration: 18 Jul 2010 → 23 Jul 2010 Conference number: 37 |
Conference
Conference | 37th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2010) |
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Abbreviated title | QNDE 2010 |
Country/Territory | United States |
City | San Diego, CA |
Period | 18/07/10 → 23/07/10 |