The Optimum Distance of Lift-Off Height on Different Test Material’s Thickness by using Eddy Current Testing Technique

Fauziah Sulaiman and Salmia Santa and Elnetthra Folly Eldy (2020) The Optimum Distance of Lift-Off Height on Different Test Material’s Thickness by using Eddy Current Testing Technique. International Journal of Engineering and Advanced Technology (IJEAT), 10 (1). pp. 125-128. ISSN 2249-8958

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Abstract

The Eddy current testing (ECT) technique is one of the non-destructive testing (NDT) techniques which is sensitive to the unintended signal such as lift-off (LO) height effect. The output voltage of signal defects with different thicknesses of test materials (i.e., Copper, Brass and Magnesium Alloy) can be determined from the optimum distance of LO height of the ECT technique. Previously, an established frequency was determined for these particular materials (i.e., Copper = (5.00-5.25) MHz, Brass = (4.75-5.25)MHz and Magnesium Alloy= (4.75-5.00)MHz). The frequency then generated the established voltage signal of the ECT technique. The acquired optimum distance of LO height for these materials is approximately 2mm. The findings from this established technique indicated that the determined optimum distance of LO height can find the output voltage signal of the defects as well as to detect the thicknesses.

Item Type:	Article
Keyword:	ECT Technique, Lift-off Optimum Distances, Non Destructive Test (NDT)
Subjects:	T Technology > T Technology (General)
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	16 Apr 2021 14:20
Last Modified:	16 Apr 2021 14:20
URI:	https://eprints.ums.edu.my/id/eprint/26766

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