| Autor: |
Aldrin, John C., Sabbagh, Harold A., Annis, Charles, Shell, Eric B., Knopp, Jeremy, Lindgren, Eric A. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2015, Vol. 1650 Issue 1, p1873-1883, 11p, 1 Diagram, 2 Charts, 4 Graphs |
| Abstrakt: |
When performing inverse-methods for the characterization of cracks, there is a need to assess the quality of the result without prior knowledge of the flaw state. This paper investigates the use of two estimation metrics, confidence intervals on parameter estimates and the frequency that the global solution was achieved, for assessing inversion performance. A case study on eddy current inversion of surface-breaking cracks was used to evaluate the viability of these metrics. While these metrics were found to have benefit, the parameter confidence intervals were found to not be conservative. As well, when there are problems with convergence to the global minima, residual error plots and mean square error maps were found to provide more information on model quality and the true bounds on the parameter estimates. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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