Abstract
We propose a new nondestructive testing technique by means of electromagnetic field detection focusing on a local volume. The technique consists of an induction wire and an electromagnetic detecting sensor and is a non-contact method in application. In this study, the developed technique was applied to the evaluation of EDM slits and fatigue crack in some paramagnetic metals and investigated the influence for some lift-off and the change of the measured voltages for the depth of defects. The measured voltage signal in the vicinity of defects changes, and the magnitude of the peak voltage for each defect varies with the depth of defect.
| Original language | English |
|---|---|
| Pages (from-to) | 625-629 |
| Number of pages | 5 |
| Journal | Key Engineering Materials |
| Volume | 270-273 |
| Issue number | I |
| DOIs | |
| Publication status | Published - 2004 |
| Externally published | Yes |
| Event | Proceedings of the 11th Asian Pacific Conference on Nondestructive Testing - Jeju Island, Korea, Republic of Duration: 2003 Nov 3 → 2003 Nov 7 |
Keywords
- Electromagnetic field
- Induction wire
- Lift-off
- Non-contact
- Paramagnetic metal
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering