Naslov
A low-power automated measurement system for pulsed eddy current based inspection of oil-well casing

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

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

Izvornik
Proceedings of the XIII IMEKO international symposium on measurements for research & industry applications / Kayafas, E. ; - Atena : International Measurement Confederation, 2004, 401-404

Skup
XIII international symposium on measurements for research & industry applications

Mjesto i datum
Atena, Grčka, 29.09.2004. - 01.10.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pulsed eddy current; oil-well inspection; high-temperature design
(eddy current; oil-well inspection; high-temperature design)

Sažetak
This paper presents a design of a multichannel measurement system for nondestructive inspection of oil-well casing's mechanical properties (i.e. tube wall thickness and inner diameter), employing pulsed eddy current (PEC) technique. A specific feature of the system is its operation in high-temperature environment (typically up to 175°C), which requires simple and robust circuits, low part-count probe design, low power consumption and proper automated measurement algorithms to ensure reliable operation. Based on our previous work on PEC method, we propose an inspection tool, consisted of a simple, low-length three-coil probe, switch-mode power conditioning and transmitter excitation unit, and a low-power data acquisition and telemetry circuit. Preliminary results of our high-temperature functional tests confirm reliable operation of the inspection tool and provide additional verification of the previously proposed PEC methodology for measurements in harsh environments.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA