MATEC Web Conf.
Volume 225, 2018UTP-UMP-VIT Symposium on Energy Systems 2018 (SES 2018)
|Number of page(s)||6|
|Section||Economic, environmental, social, policy and utilization aspects of energy|
|Published online||05 November 2018|
Investigate the effect of lift-off on eddy current signal for carbon steel plate
Faculty of Electrical and Electronics, University Malaysia Pahang, Malaysia
2 Faculty of Electronic and Information Eng., Huaiyin Institute of Technology, Huai’an, Jiansu, China
3 Faculty of Electrical and Automation Engineering Technology, TATI University College, Malaysia
4 Nanotechnology and Catalysis Research Center (NANOCAT), University of Malaya, 50603 Kuala Lumpur, Malaysia
* Corresponding author: firstname.lastname@example.org
In this study, the effect of various factors like lift-off and depth defect on the eddy current signal was investigated. Investigation methods like response surface methodology (RSM) and composed central design (CCD) were employed to establish the relationship between lift-off distance, depth of a defect and the eddy current signal by the two-factor interaction equation, and would provide a reference in further to accurate the depth defect. The regression analysis suggested that eddy current signal was well fitted by the two-factor interaction equation (R2 = 0.9656). The eddy current signal was investigated by varying the levels of these two independent variables, in which all have significant influences on eddy current signal. There would be a change in the amplitude and when lift-off distance is altered, and lift off distance increased, the increase of the amplitude of output signal decrease gradually.
© The Authors, published by EDP Sciences, 2018
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