| Název: | Analyzing probability of detection as a function of defect size and depth in pulsed IR thermography |
| Autoři: | Moskovchenko, Alexey Švantner, Michal Vavilov, Vladimir Chulkov, Arsenii |
| Citace zdrojového dokumentu: | MOSKOVCHENKO, A. ŠVANTNER, M. VAVILOV, V. CHULKOV, A. Analyzing probability of detection as a function of defect size and depth in pulsed IR thermography. NDT & E INTERNATIONAL, 2022, roč. 130, č. SEP 2022, s. nestránkováno. ISSN: 0963-8695 |
| Datum vydání: | 2022 |
| Nakladatel: | Elsevier |
| Typ dokumentu: | článek article |
| URI: | 2-s2.0-85131260947 http://hdl.handle.net/11025/49651 |
| ISSN: | 0963-8695 |
| Klíčová slova v dalším jazyce: | Defect depth;Detectability;Infrared thermography;Probability of detection |
| Abstrakt v dalším jazyce: | This study introduces a novel approach to the presentation of the probability of detection (POD) function in infrared (IR) thermographic nondestructive testing. The modified POD is suggested as a function of two defect parameters, namely, defect depth and lateral size. The proposed approach is based on calculating theoretical values of maximum temperature contrast for many defect size/depth combinations by using an appropriate analytical model. Furthermore, these values are used for the quantification of defects to produce predicted POD curves by applying a signal/response method. The results appear as the POD maps illustrating detectability of defects with various size/depth combinations. By setting a particular POD threshold, for example, 90%, the detectability limit contours can be obtained. These contours illustrate the limiting combinations of the depth and diameter of the defects, which can be detected with a required probability of correct detection under a particular temperature signal threshold. The proposed methodology is illustrated with an example of using the POD approach in pulsed IR thermographic inspection of a 3D printed specimen with artificial sphere-like defects. Such an approach allows predicting the detectability of defects in a vast range of depth/size ratios by using an analytical model and a limited number of experiments. |
| Práva: | Plný text je přístupný v rámci univerzity přihlášeným uživatelům. © Elsevier |
| Vyskytuje se v kolekcích: | Články / Articles OBD |
Soubory připojené k záznamu:
| Soubor | Velikost | Formát | |
|---|---|---|---|
| MOSKOVCHENKO_Analyzing probability of detection.pdf | 3,51 MB | Adobe PDF | Zobrazit/otevřít Vyžádat kopii |
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