Pulsed Eddy Current Sensing for Critical Pipe Condition Assessment

Pulsed Eddy Current (PEC) sensing is used for Non-Destructive Evaluation (NDE) of the structural integrity of metallic structures in the aircraft, railway, oil and gas sectors. Urban water utilities also have extensive large ferromagnetic structures in the form of critical pressure pipe systems made...

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Main Authors: Nalika Ulapane, Alen Alempijevic, Teresa Vidal Calleja, Jaime Valls Miro
Format: Article
Language:English
Published: MDPI AG 2017-09-01
Series:Sensors
Subjects:
NDE
NDT
PEC
Online Access:https://www.mdpi.com/1424-8220/17/10/2208
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spelling doaj-d74e1dabbd4949e9b11b7ae2d90624332020-11-24T21:09:58ZengMDPI AGSensors1424-82202017-09-011710220810.3390/s17102208s17102208Pulsed Eddy Current Sensing for Critical Pipe Condition AssessmentNalika Ulapane0Alen Alempijevic1Teresa Vidal Calleja2Jaime Valls Miro3Centre for Autonomous Systems (CB 11.09.300), Faculty of Engineering and Information Technology, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, AustraliaCentre for Autonomous Systems (CB 11.09.300), Faculty of Engineering and Information Technology, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, AustraliaCentre for Autonomous Systems (CB 11.09.300), Faculty of Engineering and Information Technology, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, AustraliaCentre for Autonomous Systems (CB 11.09.300), Faculty of Engineering and Information Technology, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, AustraliaPulsed Eddy Current (PEC) sensing is used for Non-Destructive Evaluation (NDE) of the structural integrity of metallic structures in the aircraft, railway, oil and gas sectors. Urban water utilities also have extensive large ferromagnetic structures in the form of critical pressure pipe systems made of grey cast iron, ductile cast iron and mild steel. The associated material properties render NDE of these pipes by means of electromagnetic sensing a necessity. In recent years PEC sensing has established itself as a state-of-the-art NDE technique in the critical water pipe sector. This paper presents advancements to PEC inspection in view of the specific information demanded from water utilities along with the challenges encountered in this sector. Operating principles of the sensor architecture suitable for application on critical pipes are presented with the associated sensor design and calibration strategy. A Gaussian process-based approach is applied to model a functional relationship between a PEC signal feature and critical pipe wall thickness. A case study demonstrates the sensor’s behaviour on a grey cast iron pipe and discusses the implications of the observed results and challenges relating to this application.https://www.mdpi.com/1424-8220/17/10/2208critical pipeseddy currentsGaussian processNDENDTPECsensors
collection DOAJ
language English
format Article
sources DOAJ
author Nalika Ulapane
Alen Alempijevic
Teresa Vidal Calleja
Jaime Valls Miro
spellingShingle Nalika Ulapane
Alen Alempijevic
Teresa Vidal Calleja
Jaime Valls Miro
Pulsed Eddy Current Sensing for Critical Pipe Condition Assessment
Sensors
critical pipes
eddy currents
Gaussian process
NDE
NDT
PEC
sensors
author_facet Nalika Ulapane
Alen Alempijevic
Teresa Vidal Calleja
Jaime Valls Miro
author_sort Nalika Ulapane
title Pulsed Eddy Current Sensing for Critical Pipe Condition Assessment
title_short Pulsed Eddy Current Sensing for Critical Pipe Condition Assessment
title_full Pulsed Eddy Current Sensing for Critical Pipe Condition Assessment
title_fullStr Pulsed Eddy Current Sensing for Critical Pipe Condition Assessment
title_full_unstemmed Pulsed Eddy Current Sensing for Critical Pipe Condition Assessment
title_sort pulsed eddy current sensing for critical pipe condition assessment
publisher MDPI AG
series Sensors
issn 1424-8220
publishDate 2017-09-01
description Pulsed Eddy Current (PEC) sensing is used for Non-Destructive Evaluation (NDE) of the structural integrity of metallic structures in the aircraft, railway, oil and gas sectors. Urban water utilities also have extensive large ferromagnetic structures in the form of critical pressure pipe systems made of grey cast iron, ductile cast iron and mild steel. The associated material properties render NDE of these pipes by means of electromagnetic sensing a necessity. In recent years PEC sensing has established itself as a state-of-the-art NDE technique in the critical water pipe sector. This paper presents advancements to PEC inspection in view of the specific information demanded from water utilities along with the challenges encountered in this sector. Operating principles of the sensor architecture suitable for application on critical pipes are presented with the associated sensor design and calibration strategy. A Gaussian process-based approach is applied to model a functional relationship between a PEC signal feature and critical pipe wall thickness. A case study demonstrates the sensor’s behaviour on a grey cast iron pipe and discusses the implications of the observed results and challenges relating to this application.
topic critical pipes
eddy currents
Gaussian process
NDE
NDT
PEC
sensors
url https://www.mdpi.com/1424-8220/17/10/2208
work_keys_str_mv AT nalikaulapane pulsededdycurrentsensingforcriticalpipeconditionassessment
AT alenalempijevic pulsededdycurrentsensingforcriticalpipeconditionassessment
AT teresavidalcalleja pulsededdycurrentsensingforcriticalpipeconditionassessment
AT jaimevallsmiro pulsededdycurrentsensingforcriticalpipeconditionassessment
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