Non-contact, non-destructive testing in various industrial sectors with terahertz technology

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Abstract

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.

Original languageEnglish
Article number712
JournalSensors (Switzerland)
Volume20
Issue number3
DOIs
Publication statusPublished - 1 Feb 2020

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