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.
Results
Showing 1 to 20 of 21 for “"sensing area"”.
-
The Force Floor: Design and Development of a Low-Cost 3D Force Sensing Area Which Utilises Machine Learning to Estimate 3D GRF and CoP from Single-Axis Loadcells
… create the prototype Force Floor - a large force sensing area. The performance of a subset of these plates and their corresponding models was tested against an Advanced Mechanical Technology Inc. (AMTI) BMS6001200 force plate, with the best obtaining average measurement disagreements in the X-, Y- …
-
Structural Health Monitoring Using Multiple Piezoelectric Sensors and Actuators
… by ambient temperature change; ii) the sensing area is small; and iii) the ability to identify the damage location is poor. The objective of this research is to solve these problems in order to apply the impedance-based structural health monitoring technique to real structures. First, an …
-
Study of Multimode Extrinsic Fabry-Perot Interferometric Fiber Optic Sensor on Biosensing
… an effective application in the field of biosensing due to the uniform nanoscale structure. In previous research, a single mode fiber (SMF) sensor system had been investigated for the thin-film measurement due to the high fringe visibility. However, compared with a SMF sensor system, a …
-
Photogating Effect and Diffractive Optics in Low-Dimensional Structures
… for infrared wavelengths and enhanced sensing of chemical molecules have been obtained recently, advancing our understanding of the earth's climate and space imaging. This kind of advancement is made possible through the thorough understanding of the performance of these devices which …
-
High-Speed Quasi-Distributed Optical Fiber Sensing Based on Ultra-Weak Fiber Bragg Gratings
… provided fundamental basis for many research areas. One example area is distributed optical fiber sensing, which has been attracting research interests for decades. Optical fiber sensors are immune to electromagnetic interference, and resistant to corrosion and can endure harsh environment so …
-
Hydrogel-based Graphene Electrochemical Tattoo (GECT) Sensor for Tyrosine Sensing in Sweat
… in order to collect and keep the sweat on the sensing area, microfluidics has been proposed. While they perform excellently in delivering the fluid to the sensor, they are often fabricated from materials with form factors far from skin, causing discomfort to the skin. As the sensor’s thickness …
-
Considerations of the Impedance Method, Wave Propagation, and Wireless Systems for Structural Health Monitoring
… of excitation used for the method, the sensing area for damage detection can be very localized. Previous work has shown that wave propagation can be added to systems already equipped with hardware for impedance-based structural health monitoring. The work in this thesis shows what …
-
Development of a multi-axial load distribution measurement device
… <2%RC) and physical characteristics (sensing area 10x10mm). Subsequently, an array consisting of 20 discrete magnetic-based transducers was constructed. In a single subject trial, the total shear load measured by the array was <2N of that measured by a Kistler® force platform. Although …
-
Integrated optical surface plasmon resonance for electrochemically addressed layers
… and electrochemical interrogating technique in sensing electrochemically addressed layers over a gold film. This device brings together the advantages of the analytical technique of surface plasmon resonance and of cyclic voltammetry on a single chip that exhibits portability, miniaturisation …
-
High speed photodiode and 90° optical hybrid for 2 µm optical communication systems
… while the photodiode is also useful in gas sensing area such as carbon dioxide mapping of the atmosphere on the earth.
-
Redesigning diabetic foot risk assessment for amputation prevention in low-resource settings: Development of a purely mechanical plantar pressure evaluation device
… lowering the device's profile and increasing the sensing area. Strained health systems may then be able to use this device to allocate scarce healthcare resources more efficiently to prevent costly DFUs and amputations.
-
Point-of-care immunoassay system using carbon nanotube labels
… enhanced signal detection mechanisms for immunosensing using carbon nanotubes (CNTs). The utilization of CNT labels for direct electrical measurement was implemented on lateral flow system and microfluidic integrated interdigitated array microelectrodes. These sensing mechanisms in simple and …
-
Sparse Sample Detection Using Magnetic Bead Manipulation on a Digital Microfluidic Device
… by target cell concentration and reduced sensing area. Theoretical limitations of the entire sparse sample detection system is as low as 1 Colony Forming Unit/mL (CFU/mL).</p>
-
Development of an optical cavity-based biosensor for point-of-care diagnostics.
… of the OCB was discussed. To demonstrate the biosensing capability and experimentally determine the limit-of-detection (LOD) of the OCB, streptavidin and C-reactive protein (CRP) detections were performed. The optical cavity design was optimized further, and the surface functionalization process …
-
Graph-theoretic channel modeling and topology control protocols for wireless sensor networks
… performance evaluations for real wireless local area network (WLAN) and wireless sensor network (WSN) channels demonstrate that the proposed Hamiltonian Model, while providing orders of magnitude reduction in complexity, renders an accuracy that is comparable to the Markov model and better than …
-
Development of a practical electrical tomography system for flexible contact sensing applications
Tactile sensing is seeing an increase in potential applications, such as in humanoid and industrial robots; health care systems and medical instrumentation; prosthetic devices; and in the context of human-machine interaction. However, these applications require the integration of tactile sensors …
-
Sensing and Imaging Biomolecules with Plasmonic Nanoparticle Assemblies Coupled with Darkfield Microscopy
… for many applications including diagnostics and sensing. This dissertation presents a complex nanostructure comprising a core gold nanoparticle surrounded by multiple satellite gold nanoparticles for biosensing application. Chapter 2 introduces the fabrication and characterization of the …
-
On The Use Of Variable Coherence In Inverse Scattering Problems
… been commonly manipulated in a variety of remote sensing procedures, controlling the degree of coherence of light did not find wide applications until recently. Since the emergence of optical coherence tomography, a growing number of scattering techniques have relied on temporal coherence gating …
-
Analysis of the sensing region of a PZT actuator-sensor
… in the monitored structure. It also limits the sensing area to a region close to the PZT source, therefore only changes in the near field of the PZT are detected, enhancing the ability of this technique to localize incipient damage. The phenomena of the PZT's sensing region localization has been …
-
Portable electrochemical and plasmonic biosensors for biomedical application
Portable sensing for point-of-care (POC) has attracted a lot of attention in these years and has been developed in a wide variety for clinical and environmental applications. The idea of POC comes from the advances in portable smart electronic devices and micro-fluid systems which can be integrated …
Page 1 of 2