In this paper, a new processing scheme for compensating the liftoff effect is proposed to increase the signal-to-noise ratio of measurements carried out when a duralumin plate with artificially manufactured defects was scanned with eddy-current probes. The mathematical algorithm is based on the spatial frequency behavior of the output signals with the liftoff distance (the distance between the probe used for inspection and the sample) and its equivalent form (deconvolution) in the spatial domain. Results are presented for measurements performed at three different distances for the same defect of the duralumin plate.
机构:
Korea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South KoreaKorea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South Korea
Lee, Jongsu
Sohn, Hoon
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Korea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South KoreaKorea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South Korea
Sohn, Hoon
Lim, Hyung Jin
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Kyonggi Univ, Dept Civil & Energy Syst Eng, Suwon 16227, South KoreaKorea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South Korea
机构:
Korea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South KoreaKorea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South Korea
Lee, Jongsu
Sohn, Hoon
论文数: 0引用数: 0
h-index: 0
机构:
Korea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South KoreaKorea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South Korea
Sohn, Hoon
Lim, Hyung Jin
论文数: 0引用数: 0
h-index: 0
机构:
Kyonggi Univ, Dept Civil & Energy Syst Eng, Suwon 16227, South KoreaKorea Adv Inst Sci & Technol, Dept Civil & Environm Eng, Daejeon 34141, South Korea