Title :
Simple electromagnetic detection of variations in properties of metal surfaces
Author :
Mostafavi, Reza F ; Mirshekar-Syahkal, D.
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
fDate :
7/1/1997 12:00:00 AM
Abstract :
Recently, a significant improvement in the sensitivity of the nonuniform AC field measurement technique for the detection of cracks was reported. In this paper, the results of the application of the improved technique in the detection of heat-effected zones and ground welds are presented and briefly discussed. In such applications, the use of a long probe is essential
Keywords :
eddy current testing; field strength measurement; probes; EM detection; electromagnetic detection; ground welds; heat-effected zones; long probe; metal surfaces; nonuniform AC field measurement technique; Coils; Electromagnetic fields; Electromagnetic heating; Electromagnetic measurements; Magnetic field measurement; Magnetic fields; Probes; Surface cracks; Welding; Wire;
Journal_Title :
Magnetics, IEEE Transactions on
