1. Roger M. Groves

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    1. Mentioned In 8 Articles

    2. Optical coherence tomography complemented by hyperspectral imaging for the study of protective wood coatings

      Optical coherence tomography complemented by hyperspectral imaging for the study of protective wood coatings
      Optical coherence tomography (OCT) is a contactless and non-destructive testing (NDT) technique based on low-coherence interferometry. It has recently become a popular NDT-tool for evaluating cultural heritage. In this study, protective coatings on wood and their penetration into the wood structure were measured with a customized infrared fiber optic OCT instrument. In order to enhance the understanding of the OCT measurements of coatings on real wooden samples, an optimization of ...
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    3. Feature Of The Week 4/27/14: TU Delft Investigates 3D Monitoring of Delamination Growth in a Wind Turbine Blade Composite using OCT

      Feature Of The Week 4/27/14: TU Delft Investigates 3D Monitoring of Delamination Growth in a Wind Turbine Blade Composite using OCT
      The aim of this work is to use OCT imaging as a novel NDT tool to investigate delamination growth inside a wind turbine blade composite. The selected specimen is a glass fiber composite used for the spar webs. For the study, a compact fiber-optical OCT system coupled with a tensile test stage was built first. Then specimens with an interlaminar crack were statically loaded and stepwise scanned by the OCT ...
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    4. 3D monitoring of delamination growth in a wind turbine blade composite using optical coherence tomography

      3D monitoring of delamination growth in a wind turbine blade composite using optical coherence tomography
      In this paper, delamination and delamination growth in a glass fiber composite used for the spar webs in wind turbine blades is investigated by optical coherence tomography (OCT). The cross-sectional and volumetric images clearly showed the microstructure and the crack within the specimen. After applying an optimized signal processing algorithm, 3D crack growth measured using OCT were demonstrated for the first time to the best of our knowledge. The crack ...
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    5. Quality assessment of aerospace materials with optical coherence tomography

      Quality assessment of aerospace materials with optical coherence tomography
      The increasing demand of the aerospace industry for new functional materials requires appropriate methods for quality assessment. It is a new challenge nowadays to characterize materials with microstructure quickly, accurately, and nondestructively. Optical coherence tomography (OCT) is a contactless and non-destructive technique for obtaining the internal structure of turbid materials. In the past 20 years it has been continuously developed and nearly exclusively applied for biomedical imaging of tissues while ...
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  2. About Roger M. Groves

    Roger M. Groves

    Roger M. Groves is an assistant professor at Delft University of Technology where he heads the Aerospace Non-Destructive Testing Laboratory. His current research interests include instrumentation for measurements of materials and structures, defect detection and location, measurement of strain, characterization of vibration, and measurement of associated parameters such as shape and position. He has more than 100 journal and conference publications on these topics.