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 11 of 11 for “"Thin-film Sensors"”.
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Design, Analysis, and Testing of Nanoparticle-Infused Thin Film Sensors for Low Skin Friction Applications
… Conventional direct measurement skin friction sensors currently in use are intrusive, requiring movable surface elements with gaps surrounding that surface, or require optical access for measurements. Conventional direct measurement sensors are also difficult to apply in low shear environments, …
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Development and Application of a Portable System to Reliably Measure Grip Forces Using Thin-Film Force Sensors
… power to, and condition, the signals from eight thin-film force sensors. This gives a better understanding of the grip force used on many different tool applications that were previously immeasurable. Using this information, knowledge can be gained in determining how much of a role grip force …
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A novel microchemical system for rapid liquid-liquid chemistry
… infrared transmission detection capabilities and thin film metal temperature sensors. Quantitative data are obtained using on-chip optical detection methods, integrated thin film sensors, and off-chip pressure sensors. For microchemical systems, the length scales are short. Consequently, Reynolds …
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Sapphire Fiber Based Sensing Technologies for High Temperature Applications
… applications was proposed and studied. The sensors are no more than 75 µm in diameter and are ideal for non-invasive embedded sensing applications. Unlike existing sapphire fiber sensors, the thin film sensors are batch-fabrication oriented and thus have a potential to permit mass production …
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Properties and sensor performance of zinc oxide thin films
Reactively sputtered ZnO thin film gas sensors were fabricated onto Si wafers. The atmosphere dependent electrical response of the ZnO micro arrays was examined. The effects of processing conditions on the properties and sensor performance of ZnO films were investigated. Using AFM, SEM, XRD and …
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The design and synthesis of polymeric assemblies for materials applications : chemosensing, liquid crystal alignment and block copolymers
… We further describe the optimization of a thin-film sensor comprised of these two components as well as its performance and selectivity. In the next chapter we describe the design and synthesis of two new polymers that are capable of undergoing the di-[Pi]-methane rearrangement. We begin by …
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Fluorescent Materials and Thin Film Coatings for Temperature Sensing Applications
… sensing methods. Traditional contact-based sensors, such as thermocouples and thermistors, often suffer from limited accuracy, signal drift, or physical degradation under harsh conditions. Non-contact techniques like pyrometry offer faster measurements but are constrained by emissivity …
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The testing of semiconductor-based adsorption modified photosensitive sensors for their response to a volatile organic compound, oxygen, humidity, and heating
Two thin-film sensors, composed of different thicknesses (approximately 0.5 microns and 4.5 microns) of a cadmium sulfide layer coated with Rhodamine B fluorescent dye on a glass substrate, were tested for change in photoconductivity due to exposure to different concentrations of gaseous organic …
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Evaluation of Textile Force-Sensitive Resistors in Quantifying Athletic Shoe Fit
… shoe-foot contact pressures with plastic thin-film pressure sensors and using this to successfully quantify shoe fit. However, the physical properties of plastic thin-film sensors are limited and the testing procedure for the sensors used in the studies does not translate well to an …
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An investigation into turbine ventilators as a potential environmental control measure to minimise the risk of transmission of tuberculosis - a laboratory and field study
… was beyond the limit of detection of the thin-film sensors. In the buoyancy forces test, a turbulent region near the base of the turbine ventilator was realised, where the magnitude and direction of the air flowing at 1.5D continuously changed. This turbulent region was again observed in …
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NANOSTRUCTURED COMPOSITE FILMS FOR BRAIN-MACHINE INTERFACE APPLICATIONS
… medicine. In this frame, advances in thin-film sensors and non-invasive signal processing enable wearable systems to monitor brain and peripheral neural activity [2] in view of the development of efficient Brain-Machine Interfaces (BMIs) [3]. While the quality and quantity of signal …