Thomas Waschkies
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View article: A comparative study of infrared, terahertz and air-coupled ultrasonic NDT for cultural heritage
A comparative study of infrared, terahertz and air-coupled ultrasonic NDT for cultural heritage Open
This work is based on a comparative study of three Non-destructive Testing NDT techniques for the inspection of an old book that was bound in the XIXth century. Infrared thermography (IRT), terahertz time-domain spectroscopy (THz-TDS) and …
View article: Nondestructive Testing of the Integrity of Solid Oxide Fuel Cell Stack Elements by Ultrasound and Thermographic Techniques
Nondestructive Testing of the Integrity of Solid Oxide Fuel Cell Stack Elements by Ultrasound and Thermographic Techniques Open
Single planar fuel cell elements consisting of metallic interconnectors that are bonded and sealed by a thin glass solder layer form the core of a solid oxide fuel cell. For reliable operation, the bonding layer has to adhere well and must…
View article: Air Ultrasonic Signal Localization with a Beamforming Microphone Array
Air Ultrasonic Signal Localization with a Beamforming Microphone Array Open
Nondestructive testing methods are used to inspect and test materials and components for discontinuities or differences in mechanical characteristics. Phased array signal processing techniques have been widely used in different application…
View article: Use of Thermography and Ultrasound for the Quality Control of SMC Lightweight Material Reinforced by Carbon Fiber Tapes
Use of Thermography and Ultrasound for the Quality Control of SMC Lightweight Material Reinforced by Carbon Fiber Tapes Open
Growing requirements of Sheet Molding Compound (SMC) parts make new material combinations necessary. One strategy is to reinforce SMC with unidirectional carbon fiber tapes to improve its mechanical properties. As quality assessment of cur…