High-speed inspection of rails using ACFM techniques

Mayorkinos Papaelias; MC Lugg; Clive Roberts; Claire Davis

doi:10.1016/j.ndteint.2008.12.008

High-speed inspection of rails using ACFM techniques

Mayorkinos Papaelias, MC Lugg, Clive Roberts, Claire Davis

Research output: Contribution to journal › Article

77 Citations (Scopus)

Abstract

High-speed ACFM tests were carried out using a rotary test piece that contained spark-eroded notches. The ACFM sensor detected the induced notches during inspection at 121.5 km/h. The recorded signal remained unaffected by the increases in inspection speed under constant lift-off. To simulate actual rail inspection conditions at high speed, further tests were carried out using a spinning rail rig and a set of rails that contained spark-eroded notches of various shapes and sills up to a speed of 32 km/h. Although, the ACFM sensor Successfully detected the majority of the notches, the signal obtained was affected by lift-off variations. (C) 2009 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	328-335
Number of pages	8
Journal	NDT & E International
Volume	42
Issue number	4
DOIs	https://doi.org/10.1016/j.ndteint.2008.12.008
Publication status	Published - 1 Jun 2009

Keywords

Rail inspection
Rolling contact fatigue
ACFM
Electromagnetic
Crack detection

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10.1016/j.ndteint.2008.12.008

New Instrumentation for the Scientific Study of Rail Defects
Davis, C. (Principal Investigator) & Roberts, C. (Co-Investigator)
Engineering & Physical Science Research Council
18/10/05 → 17/03/09
Project: Research Councils

Cite this

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title = "High-speed inspection of rails using ACFM techniques",

abstract = "High-speed ACFM tests were carried out using a rotary test piece that contained spark-eroded notches. The ACFM sensor detected the induced notches during inspection at 121.5 km/h. The recorded signal remained unaffected by the increases in inspection speed under constant lift-off. To simulate actual rail inspection conditions at high speed, further tests were carried out using a spinning rail rig and a set of rails that contained spark-eroded notches of various shapes and sills up to a speed of 32 km/h. Although, the ACFM sensor Successfully detected the majority of the notches, the signal obtained was affected by lift-off variations. (C) 2009 Elsevier Ltd. All rights reserved.",

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AU - Roberts, Clive

AU - Davis, Claire

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N2 - High-speed ACFM tests were carried out using a rotary test piece that contained spark-eroded notches. The ACFM sensor detected the induced notches during inspection at 121.5 km/h. The recorded signal remained unaffected by the increases in inspection speed under constant lift-off. To simulate actual rail inspection conditions at high speed, further tests were carried out using a spinning rail rig and a set of rails that contained spark-eroded notches of various shapes and sills up to a speed of 32 km/h. Although, the ACFM sensor Successfully detected the majority of the notches, the signal obtained was affected by lift-off variations. (C) 2009 Elsevier Ltd. All rights reserved.

AB - High-speed ACFM tests were carried out using a rotary test piece that contained spark-eroded notches. The ACFM sensor detected the induced notches during inspection at 121.5 km/h. The recorded signal remained unaffected by the increases in inspection speed under constant lift-off. To simulate actual rail inspection conditions at high speed, further tests were carried out using a spinning rail rig and a set of rails that contained spark-eroded notches of various shapes and sills up to a speed of 32 km/h. Although, the ACFM sensor Successfully detected the majority of the notches, the signal obtained was affected by lift-off variations. (C) 2009 Elsevier Ltd. All rights reserved.

KW - Rail inspection

KW - Rolling contact fatigue

KW - ACFM

KW - Electromagnetic

KW - Crack detection

U2 - 10.1016/j.ndteint.2008.12.008

DO - 10.1016/j.ndteint.2008.12.008

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VL - 42

SP - 328

EP - 335

JO - NDT & E International

JF - NDT & E International

IS - 4

ER -

High-speed inspection of rails using ACFM techniques

Abstract

Keywords

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New Instrumentation for the Scientific Study of Rail Defects

Cite this