Eddy-current crack detection at frequencies approaching electrical resonance

Robert R. Hughes; Steve Dixon

doi:10.1063/1.4864980

Eddy-current crack detection at frequencies approaching electrical resonance

Robert R. Hughes
, Steve Dixon

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

6 Citations (Scopus)

Abstract

The effect of operating an absolute eddy-current (EC) probe at frequencies around its electrical resonance was investigated. A defect signal enhancement phenomenon was observed and characterised. Experimental tests were performed on notch defects in typical aerospace superalloys. An absolute mode EC probe was operated by sweeping through a range of frequencies, in the MHz range, encompassing the electrical resonance of the system. Resonance decoupling above defects results in a signal-to-noise ratio (SNR) peak, within a band of frequencies approaching resonance, of up to 3.7 times that measured at 1MHz. This near electrical resonance signal enhancement (NERSE) phenomenon poses the possibility for a simple operational approach method for improving the sensitivity of conventional eddy-current testing.

Original language	English
Title of host publication	40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing
Publisher	American Institute of Physics (AIP)
Pages	1366-1373
Number of pages	8
Volume	1581 33
ISBN (Print)	9780735412118
DOIs	https://doi.org/10.1063/1.4864980
Publication status	Published - 1 Jan 2014
Event	40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013 - Baltimore, MD, United States Duration: 21 Jul 2013 → 26 Jul 2013

Conference

Conference	40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013
Country/Territory	United States
City	Baltimore, MD
Period	21/07/13 → 26/07/13

Keywords

Crack Detection
Eddy-current
Resonance

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Hughes, R. R., & Dixon, S. (2014). Eddy-current crack detection at frequencies approaching electrical resonance. In 40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing (Vol. 1581 33, pp. 1366-1373). American Institute of Physics (AIP). https://doi.org/10.1063/1.4864980

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title = "Eddy-current crack detection at frequencies approaching electrical resonance",

abstract = "The effect of operating an absolute eddy-current (EC) probe at frequencies around its electrical resonance was investigated. A defect signal enhancement phenomenon was observed and characterised. Experimental tests were performed on notch defects in typical aerospace superalloys. An absolute mode EC probe was operated by sweeping through a range of frequencies, in the MHz range, encompassing the electrical resonance of the system. Resonance decoupling above defects results in a signal-to-noise ratio (SNR) peak, within a band of frequencies approaching resonance, of up to 3.7 times that measured at 1MHz. This near electrical resonance signal enhancement (NERSE) phenomenon poses the possibility for a simple operational approach method for improving the sensitivity of conventional eddy-current testing.",

keywords = "Crack Detection, Eddy-current, Resonance",

author = "Hughes, \{Robert R.\} and Steve Dixon",

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language = "English",

isbn = "9780735412118",

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booktitle = "40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing",

publisher = "American Institute of Physics (AIP)",

address = "United States",

note = "40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013 ; Conference date: 21-07-2013 Through 26-07-2013",

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Hughes, RR & Dixon, S 2014, Eddy-current crack detection at frequencies approaching electrical resonance. in 40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing. vol. 1581 33, American Institute of Physics (AIP), pp. 1366-1373, 40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013, Baltimore, MD, United States, 21/07/13. https://doi.org/10.1063/1.4864980

Eddy-current crack detection at frequencies approaching electrical resonance. / Hughes, Robert R.; Dixon, Steve.
40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing. Vol. 1581 33 American Institute of Physics (AIP), 2014. p. 1366-1373.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Eddy-current crack detection at frequencies approaching electrical resonance

AU - Hughes, Robert R.

AU - Dixon, Steve

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The effect of operating an absolute eddy-current (EC) probe at frequencies around its electrical resonance was investigated. A defect signal enhancement phenomenon was observed and characterised. Experimental tests were performed on notch defects in typical aerospace superalloys. An absolute mode EC probe was operated by sweeping through a range of frequencies, in the MHz range, encompassing the electrical resonance of the system. Resonance decoupling above defects results in a signal-to-noise ratio (SNR) peak, within a band of frequencies approaching resonance, of up to 3.7 times that measured at 1MHz. This near electrical resonance signal enhancement (NERSE) phenomenon poses the possibility for a simple operational approach method for improving the sensitivity of conventional eddy-current testing.

AB - The effect of operating an absolute eddy-current (EC) probe at frequencies around its electrical resonance was investigated. A defect signal enhancement phenomenon was observed and characterised. Experimental tests were performed on notch defects in typical aerospace superalloys. An absolute mode EC probe was operated by sweeping through a range of frequencies, in the MHz range, encompassing the electrical resonance of the system. Resonance decoupling above defects results in a signal-to-noise ratio (SNR) peak, within a band of frequencies approaching resonance, of up to 3.7 times that measured at 1MHz. This near electrical resonance signal enhancement (NERSE) phenomenon poses the possibility for a simple operational approach method for improving the sensitivity of conventional eddy-current testing.

KW - Crack Detection

KW - Eddy-current

KW - Resonance

UR - https://www.scopus.com/pages/publications/84903199807

U2 - 10.1063/1.4864980

DO - 10.1063/1.4864980

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:84903199807

SN - 9780735412118

VL - 1581 33

SP - 1366

EP - 1373

BT - 40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing

PB - American Institute of Physics (AIP)

T2 - 40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013

Y2 - 21 July 2013 through 26 July 2013

ER -

Eddy-current crack detection at frequencies approaching electrical resonance

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