Analyzing probability of detection as a function of defect size and depth in pulsed IR thermography

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F22%3A43965540" target="_blank" >RIV/49777513:23640/22:43965540 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.ndteint.2022.102673" target="_blank" >https://doi.org/10.1016/j.ndteint.2022.102673</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ndteint.2022.102673" target="_blank" >10.1016/j.ndteint.2022.102673</a>

Result language

angličtina

Original language name

Analyzing probability of detection as a function of defect size and depth in pulsed IR thermography

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

<a href="/en/project/EF18_069%2F0010018" target="_blank" >EF18_069/0010018: LABIR-PAV / Pre-application research of infrared technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

NDT &amp; E INTERNATIONAL

ISSN

0963-8695

e-ISSN

1879-1174

Volume of the periodical

130

Issue of the periodical within the volume

SEP 2022

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

nestrankovano

UT code for WoS article

000810428900002

EID of the result in the Scopus database

2-s2.0-85131260947