| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Pickering, Simon G.
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2017Distance Estimation by Fusing Radar and Monocular Camera with Kalman Filter
- 2017Nonlinear imaging of damage in composite structures using sparse ultrasonic sensor arrayscitations
- 2014Nonlinear damage detection in composite structures using bispectral analysiscitations
- 2014Analysis of the delamination detection capabilities of pulse stimulated thermographic nondestructive testing techniques
- 2014Failure analysis of impact-damaged/hygrothermally aged fiber-reinforced polymer matrix composite joints subjected to bend loading
- 2014Analysis of the defect detection capabilities of pulse stimulated thermographic NDE techniquescitations
- 2013Transient thermography testing of unpainted thermal barrier coating (TBC) systemscitations
- 2013LED optical excitation for the long pulse and lock-in thermographic techniquescitations
- 2012Damage assessment of impact damages on CFRP with laser shearography
- 2011A comparison of the pulsed, lock-in and frequency modulated thermography nondestructive evaluation techniquescitations
- 2010Comparison of the defect detection capabilities of flash thermography and vibration excitation shearographycitations
Places of action
| Organizations | Location | People |
|---|
article
A comparison of the pulsed, lock-in and frequency modulated thermography nondestructive evaluation techniques
Abstract
Pulsed, lock-in and frequency modulated thermography are three alternative nondestructive evaluation techniques. The defect imaging performance of these techniques are compared using: matched excitation energy; the same carbon fiber composite test piece and infrared camera system. The lock-in technique suffers from blind frequencies at which phase images for some defects disappear. It is shown that this problem can be overcome by using frequency modulated (chirp) excitation and an image fusion algorithm is presented that enhance phase imaging of defects. The signal-to-noise ratios (SNRs) of defect images obtained by the three techniques are presented. For the shallowest defects (depths 0.25 and 0.5 mm, 6 mm diameter), the pulsed technique exhibits the highest SNRs. For deeper defects the SNRs of the three techniques are similar in magnitude under matched excitation energy condition.