Abstract
It is described how digital image processing is used for measuring the length of fatigue cracks. The system is installed in a Personal Computer equipped with image processing hardware and performs automated measuring on plane metal specimens used in fatigue testing. Normally one can not achieve a resolution better then that of the image processing equipment. To overcome this problem an extrapolation technique is used resulting in a better resolution. The system was tested on a specimen loaded with different loads. The error σa was less than 0.031 mm, which is of the same size as human measuring with microscope.
| Originalsprog | Engelsk |
|---|---|
| Titel | Proceedings of the 9th International Conference on Experimental Mechanics : 20-24 August 1990, Copenhagen Denmark |
| Antal sider | 9 |
| Forlag | Technical University of Denmark (DTU) |
| Publikationsdato | 1990 |
| Sider | 2029-2037 |
| ISBN (Trykt) | 8777400356 |
| Status | Udgivet - 1990 |
| Begivenhed | The International Conference on Experimental Mechanics - Copenhagen, Danmark Varighed: 20 aug. 1990 → 24 aug. 1990 Konferencens nummer: 9 |
Konference
| Konference | The International Conference on Experimental Mechanics |
|---|---|
| Nummer | 9 |
| Land/Område | Danmark |
| By | Copenhagen |
| Periode | 20/08/1990 → 24/08/1990 |
Bibliografisk note
PDF for print: 5 pp.Emneord
- Digital Image Processing
- Fatigue Cracks