Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing

Eddy current Non Destructive Evaluation (NDE) is one of the more commonly used techniques in measure electrical conductivity and thickness of plate and pipes. In recent years, several works have reported the sensitivity of probe in measuring the depth of crack according the input excitation. To extr...

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Main Authors: Kharudin, Ali, Abdalla, Ahmed N., Damhuji, Rifai
Format: Conference or Workshop Item
Language:English
Published: 2017
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/16457/1/fluidsche2017%20paper2.pdf
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author Kharudin, Ali
Abdalla, Ahmed N.
Damhuji, Rifai
author_facet Kharudin, Ali
Abdalla, Ahmed N.
Damhuji, Rifai
author_sort Kharudin, Ali
collection UMP
description Eddy current Non Destructive Evaluation (NDE) is one of the more commonly used techniques in measure electrical conductivity and thickness of plate and pipes. In recent years, several works have reported the sensitivity of probe in measuring the depth of crack according the input excitation. To extract relevant features for input excitation types of waveform, range frequency and depth of crack have been proposed. In this paper, a method to getting clear signal output for crack detection and data for differential depth of crack identified is reported. The measuring method Mulit-Excitation Signal (MES) is based on ac current signal, pulse signal and triangle signal. A frequency signal is set from 10KHz until higher 90KHz by following the probe’s limitation. Otherwise the calibration block is used as a defect plate with the depth of crack is 0.5mm, 1mm and 1.5mm. As a result the depth of cracks signal were clearly shown by using the three types of waveform with different levels of frequency and could be concluded when frequency of input excitation is high then the ability of signal to measure the crack on the material will decrease and if frequency is low then travelling signal in defect measuring is high but the responses time is low.
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spelling UMPir164572018-10-03T07:27:50Z http://umpir.ump.edu.my/id/eprint/16457/ Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing Kharudin, Ali Abdalla, Ahmed N. Damhuji, Rifai TK Electrical engineering. Electronics Nuclear engineering Eddy current Non Destructive Evaluation (NDE) is one of the more commonly used techniques in measure electrical conductivity and thickness of plate and pipes. In recent years, several works have reported the sensitivity of probe in measuring the depth of crack according the input excitation. To extract relevant features for input excitation types of waveform, range frequency and depth of crack have been proposed. In this paper, a method to getting clear signal output for crack detection and data for differential depth of crack identified is reported. The measuring method Mulit-Excitation Signal (MES) is based on ac current signal, pulse signal and triangle signal. A frequency signal is set from 10KHz until higher 90KHz by following the probe’s limitation. Otherwise the calibration block is used as a defect plate with the depth of crack is 0.5mm, 1mm and 1.5mm. As a result the depth of cracks signal were clearly shown by using the three types of waveform with different levels of frequency and could be concluded when frequency of input excitation is high then the ability of signal to measure the crack on the material will decrease and if frequency is low then travelling signal in defect measuring is high but the responses time is low. 2017-04 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/16457/1/fluidsche2017%20paper2.pdf Kharudin, Ali and Abdalla, Ahmed N. and Damhuji, Rifai (2017) Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing. In: The International Conference on Fluids and Chemical Engineering (FluidsChE 2017) , 4-6 April 2017 , Kota Kinabalu, Sabah. pp. 1-6.. (Unpublished)
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Kharudin, Ali
Abdalla, Ahmed N.
Damhuji, Rifai
Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing
title Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing
title_full Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing
title_fullStr Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing
title_full_unstemmed Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing
title_short Multi-Excitation Signal for Depth Crack Defect in Eddy Current Testing
title_sort multi excitation signal for depth crack defect in eddy current testing
topic TK Electrical engineering. Electronics Nuclear engineering
url http://umpir.ump.edu.my/id/eprint/16457/1/fluidsche2017%20paper2.pdf
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AT abdallaahmedn multiexcitationsignalfordepthcrackdefectineddycurrenttesting
AT damhujirifai multiexcitationsignalfordepthcrackdefectineddycurrenttesting