Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 92 for “"infrared thermography"”.
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Advances in medical infrared thermography
… beginnings of medicine. Over the last few years, infrared thermography has attracted increased attention in various medical applications due to technological advancements that reduce manufacturing costs and enable high-resolution cameras with great sensitivity. The recent 2019 coronavirus disease …
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Remote infrared thermography for boundary layer measurements
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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Development of MiST-IR : multi-spectral infrared thermography
… phenomena. The technique, called Multi-Spectral Infrared Thermography or MiST, builds on previous diagnostic techniques for measuring the 2-D wall temperature distribution or the 2-D phase distribution of the fluid above the surface. These methods make use of infrared thermography, a well …
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Nondestructive evaluation of FRP composite members using infrared thermography
The objective of this research is to establish infrared thermography as an effective tool for nondestructive evaluation of structural members made of fiber reinforced polymer (FRP) composite materials. The applicability of this method for the detection of subsurface anomalies such as voids, cracks, …
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Using infrared thermography to measure the maturity of concrete
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1989.
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Assessment of Infrared Thermography for NDE of FRP Bridge Decks
… situations. This thesis will discuss the use of Infrared Thermography (IRT) as a means of detecting debonds and voids caused by conditions encountered both in fabrication and in the field. As forced convective hot air is applied within the bridge deck, debonds between bridge deck components near …
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Induction Infrared Thermography for Non-Destructive Evaluation of Alloy Sensitization
… a result of welding steel plates using induction infrared thermography (IIRT). This process uses an induction coil to generate heat within a sample whose resulting heat signature can then be detected with an infrared (IR) camera and analyzed. Previous IIRT experimental results have shown higher …
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Detection of subsurface anomalies in composite bridge decks using infrared thermography
… findings of an experimental study on the use of Infrared Thermography for nondestructive evaluation of subsurface anomalies in composite bridge decks.;Composite bridge deck specimens were constructed in the laboratory with varying subsurface delamination conditions such as sizes, thicknesses and …
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Infrared Thermography And High Accuracy Gps For Automated Asphalt Crack Detection
… of the most important recent technologies is the infrared thermography, which allows the use of infrared waves for crack detection. Another important technology is the global navigation satellite system (GNSS) which currently includes the GPS and GLONASS constellations. With the help of these …
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Direct Quantitation of Heat Loss in Human Subjects Using Infrared Thermography
Infrared thermography (IRT) can be used to quantitate changes in mean surface temperature. This value is one variable used in heat loss equations which permits computation of radiant, convective, evaporative and total heat losses from subjects. The portable, non-contact, non-invasive nature of the …
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Infrared Thermography Techniques for Flow Visualisation and Heat Transfer Coefficient Measurement
… thesis develops experimental methods that use infrared (IR) thermography to visualise the boundary layer state on components and measure full-field heat transfer coefficients. IR cameras are a mature technology; however, the methods for their use in experiments are immature and leave …
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A Method to Characterize Gas Turbine Vane Performance Using Infrared Thermography
… of the airfoils are measured using multiple infrared cameras viewing both the pressure and suction side of the airfoils. A parameter involving localized vane surface temperature, airfoil inlet temperature and ambient temperature is formulated to characterize the vane thermal performance. …
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Transition Detection for Low Speed Wind Tunnel Testing Using Infrared Thermography
… increases which can be detected using infrared thermography. This technique has been used predominantly at high speeds, on small models made of insulated materials, and for short test runs. Large scale testing has not been widely undertaken because the high sensitivity of transition to …
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Nondestructive evaluation of reinforced concrete via infrared thermography: a feasibility study
… to determine the feasibility of utilizing infrared thermography to inspect substructural elements of concrete bridges. Several specimen configurations were fabricated for thermographic inspection. A number of tests were performed on a variety of concrete specimens to determine the …
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Application of digital infrared thermography for nondestructive evaluation of composite bridge components
… is to evaluate the applicability of digital infrared thermographic system to detect subsurface defects such as debonds and delaminations in Fiber Reinforced Polymer (FRP) bridge decks and other composite bridge components such as beams and columns wrapped with steel or FRP jacket.;This thesis …
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On temperature measurements and analysis in electron beam additive manufacturing using near infrared thermography
… microstructure models. In this study, a near-infrared (NIR) thermal imager was used to measure the part temperature during the EBAM process in an Arcam S12 EBAM machine using Ti-6Al-4V powder. The temperature images collected were post-processed to analyze the process temperatures along …
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Detection of subsurface anomalies in fiber-reinforced polymer (FRP) wrapped timber bridge components using infrared thermography
… results of an experimental study on the use of Infrared Thermography technique for detection of subsurface anomalies in fiber reinforced polymer (FRP) wrapped timber bridge components. An extensive literature review on the application of various nondestructive evaluation techniques to composite …
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The use of infrared thermography and behavioural and physiological responses as early disease indicators in calves
… lying and water drinking) and physiological (infrared temperatures and respiration rate) responses which occur during the onset of neonatal calf diarrhoea (NCD), and to assess their suitability as early disease indicators. Additionally, due to an increasing trend towards providing calves with …
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