Naslov
Pulsed Eddy Current Nondestructive Testing of Ferromagnetic Tubes

Autori
Vasić, Darko ; Bilas, Vedran ; Ambruš, Davorin

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 20th IEEE Instrumentation and Measurement Technology Conference, Instrumentation and Measurement at the Summit / Zoughi, Reza - Piscataway (NJ) : Institute of Electrical and Electronics Engineers (IEEE), 2003, 1120-1125

Skup
20th IEEE Instrumentation and Measurement Technology Conference, Instrumentation and Measurement at the Summit

Mjesto i datum
Vail (CO), Sjedinjene Američke Države, 20.05.2003. - 22.05.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pulsed eddy currents; ferromagnetic tube; nondestructive testing

Sažetak
In sinusoidal eddy current nondestructive testing (NDT) of thick ferromagnetic tubes, wall thickness is measured with the coils displaced for 2-3 tube diameters (remote field eddy current technique). The tube inner diameter is measured at higher frequency with another pair of coils displaced for around 1 tube diameter (electrical caliper). In this paper we give a thorough analysis of the excitation frequency and the distance between the coils for measurement of the tube inner diameter and wall thickness as a background for the application of pulsed eddy current (PEC). We propose application of one pair of coils displaced for 1-2 tube diameters for measurement of those tube parameters employing the features of response to the pulsed excitation. Results of our experimental work confirm that PEC technique provides a significant improvement of present eddy current systems for NDT of the ferromagnetic tubes.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA