A procedure of applying the d-c potential drop technique using the closely coupled probes to NDE of a 3-D surface crack is newly developed. The calibration equation for three sensors which differ in the distance between the probes is derived. Experiments validated the use of the calibration equation for the NDE of cracks. The method to use the three sensors properly based on the measuring sensitivity is shown.
|Number of pages||5|
|Journal||Journal of Pressure Vessel Technology, Transactions of the ASME|
|Publication status||Published - 1998 Nov 1|
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Mechanics of Materials
- Mechanical Engineering