Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz Technology

In this article, we survey various non-contact, non-destructive testing methods by way of terahertz (THz) spectroscopy and imaging designed for use in various industrial sectors. A brief overview of the working principles of THz spectroscopy and imaging is provided, followed by a survey of selected...

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Main Authors: Yu Heng Tao, Anthony J. Fitzgerald, Vincent P. Wallace
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/3/712
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author Yu Heng Tao
Anthony J. Fitzgerald
Vincent P. Wallace
author_facet Yu Heng Tao
Anthony J. Fitzgerald
Vincent P. Wallace
author_sort Yu Heng Tao
collection DOAJ
description In this article, we survey various non-contact, non-destructive testing methods by way of terahertz (THz) spectroscopy and imaging designed for use in various industrial sectors. A brief overview of the working principles of THz spectroscopy and imaging is provided, followed by a survey of selected applications from three industries—the building and construction industry, the energy and power industry, and the manufacturing industry. Material characterization, thickness measurement, and defect/corrosion assessment are demonstrated through the examples presented. The article concludes with a discussion of novel spectroscopy and imaging devices and techniques that are expected to accelerate industry adoption of THz systems.
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spelling doaj.art-a125d4ff97d24a0a803c21fab2a24c312022-12-22T02:11:29ZengMDPI AGSensors1424-82202020-01-0120371210.3390/s20030712s20030712Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz TechnologyYu Heng Tao0Anthony J. Fitzgerald1Vincent P. Wallace2Department of Physics, The University of Western Australia, Perth 6009, AustraliaDepartment of Physics, The University of Western Australia, Perth 6009, AustraliaDepartment of Physics, The University of Western Australia, Perth 6009, AustraliaIn this article, we survey various non-contact, non-destructive testing methods by way of terahertz (THz) spectroscopy and imaging designed for use in various industrial sectors. A brief overview of the working principles of THz spectroscopy and imaging is provided, followed by a survey of selected applications from three industries—the building and construction industry, the energy and power industry, and the manufacturing industry. Material characterization, thickness measurement, and defect/corrosion assessment are demonstrated through the examples presented. The article concludes with a discussion of novel spectroscopy and imaging devices and techniques that are expected to accelerate industry adoption of THz systems.https://www.mdpi.com/1424-8220/20/3/712terahertz (thz)non-destructive testing (ndt)non-contactthz-tdsthz cwthz camerasthz pulsed imaging (tpi)industrial applicationsbuilding and constructionoil &ampgasmanufacturingconcretethermal barrier coatingselectrical cablesnatural gas pipelinespolymer compositessteel fabricationmultimode laser diodeselectronically controlled optical samplingbeam steering
spellingShingle Yu Heng Tao
Anthony J. Fitzgerald
Vincent P. Wallace
Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz Technology
Sensors
terahertz (thz)
non-destructive testing (ndt)
non-contact
thz-tds
thz cw
thz cameras
thz pulsed imaging (tpi)
industrial applications
building and construction
oil &amp
gas
manufacturing
concrete
thermal barrier coatings
electrical cables
natural gas pipelines
polymer composites
steel fabrication
multimode laser diodes
electronically controlled optical sampling
beam steering
title Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz Technology
title_full Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz Technology
title_fullStr Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz Technology
title_full_unstemmed Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz Technology
title_short Non-Contact, Non-Destructive Testing in Various Industrial Sectors with Terahertz Technology
title_sort non contact non destructive testing in various industrial sectors with terahertz technology
topic terahertz (thz)
non-destructive testing (ndt)
non-contact
thz-tds
thz cw
thz cameras
thz pulsed imaging (tpi)
industrial applications
building and construction
oil &amp
gas
manufacturing
concrete
thermal barrier coatings
electrical cables
natural gas pipelines
polymer composites
steel fabrication
multimode laser diodes
electronically controlled optical sampling
beam steering
url https://www.mdpi.com/1424-8220/20/3/712
work_keys_str_mv AT yuhengtao noncontactnondestructivetestinginvariousindustrialsectorswithterahertztechnology
AT anthonyjfitzgerald noncontactnondestructivetestinginvariousindustrialsectorswithterahertztechnology
AT vincentpwallace noncontactnondestructivetestinginvariousindustrialsectorswithterahertztechnology