Sökning: "Non-destructive technique"

Visar resultat 1 - 5 av 35 uppsatser innehållade orden Non-destructive technique.

1. 1. Flash Pulse Thermography Measurements of Coat Thickness

   Master-uppsats, Umeå universitet/Institutionen för fysik

   Författare :Alexander Häggkvist; [2023]
   Nyckelord :Flash Pulse Thermography; Power Function; Dynamical Thermal Tomography;

   Sammanfattning : The application of varnish, metal coats, and paint is a common practice for modifying or enhancing material properties. Metal coats are frequently used as protective layers against corrosion, heat, and wear, while also influencing characteristics like conductivity, weight, and production costs. LÄS MER

3. 2. Assessment of aggregate structure in porous asphalt using X-ray computed tomography

   Master-uppsats, KTH/Väg- och banteknik

   Författare :Mari Haagenrud Matsson; Malex Love Valdemar Åkerblom; [2023]
   Nyckelord :Tomography; non-destructive testing; destructive testing; air voids content; aggregate size distribution; porous asphalt;

   Sammanfattning : X-ray computed tomography is a technique that has been successfully utilized to characterize internal microstructure of asphalt mixtures. The city of Linköping (Sweden) developed an action plan to reduce noise; accordingly KTH and VTI developed a method to determine air void content in porous asphalt using x-ray computed tomography and an image processing software called ImageJ. LÄS MER

4. 3. Use of Pulse Thermography for Characterization of Defects in Polymer Composites

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Kim Klöckner; [2023]
   Nyckelord :NDT; Pulse Thermography; polymer composites; boats manufacturing; end-of-life structures; defect characterization;

   Sammanfattning : In this project, the possibility of using thermography as a non-destructive testing tool in the manufacturing process of boats and to assess the quality of end-of-life composite structures has been explored. To do so, a literature surview regarding the current applications of thermography and the techniques currently used for quality control in the boats industry has been conducted. LÄS MER

5. 4. Development of Advanced X-ray Micro-Tomography Helical Scan andTomographic Data Processing

   Master-uppsats, Högskolan i Gävle/Avdelningen för elektroteknik, matematik och naturvetenskap

   Författare :Yoseph Abraham; [2023]
   Nyckelord :;

   Sammanfattning : Micro-computed tomography (Micro-CT) is an imaging technique that allows for high-resolution,three-dimensional (3D) internal visualization of small objects in a non-destructive manner. However,a significant limitation arises when attempting to image elongated samples at higher resolutions andmagnifications due to the inherently small field of view (FOV). LÄS MER

7. 5. The use of hyperspectral sensors for quality assessment : A quantitative study of moisture content in indoor vertical farming

   Master-uppsats, Mälardalens universitet/Akademin för innovation, design och teknik

   Författare :Arezo Ahaddi; Zeineb Al-Husseini; [2023]
   Nyckelord :Hyperspectral Imaging; lettuce; moisture content; NIR; near-infrared spectroscopy; shelf life; quality assessment; vertical farming; MicroNIR;

   Sammanfattning : Purpose: This research will study how hyperspectral sensoring can assess the moisture content of lettuce by monitoring its growth in indoor vertical farming. Research questions: “What accuracy can be achieved when using hyperspectral sensoring for assessing the moisture content of lettuce leaves grown in vertical farming?” “How can vertical farming contribute to sustainability in conjunction with integration of NIR spectroscopy?” Methodology: This study is an experimental study with a deductive approach in which experiments have been performed using the hyperspectral technologies singlespot sensor and the hyperspectral camera Specim FX17 to collect spectral data. LÄS MER