Title :
A family of matrix type sensors for detection of slight flaws in conducting plates
Author :
Chady, T. ; Enokizono, M. ; Todaka, T. ; Tsuchida, Y. ; Sikora, R.
Author_Institution :
Oita Ind. Res. Inst., Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
The purpose of this paper is to experimentally demonstrate advantages of the new matrix type sensors useful for testing of planar specimens made of Inconel 600. A computer controlled ECT system used for multi-frequency testing is also described. The extended experiments with the sensors were performed and their results are presented. Results of the comparison of the sensors are given
Keywords :
chromium alloys; coils; eddy current testing; flaw detection; iron alloys; magnetic sensors; nickel alloys; superalloys; Inconel 600; NiCrFe; computer controlled testing system; conducting plates; eddy current testing; flaw reconstruction; matrix type sensors; multi-frequency testing; planar specimens; precise crack imaging; search coils; single exciting coil; slight flaws detection; Digital filters; Frequency; IIR filters; Interference; Matrix converters; Noise level; Noise measurement; Power measurement; Probes; Spectrogram;
Journal_Title :
Magnetics, IEEE Transactions on
