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 18 of 18 for “"Surface measurement"”.
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A real time 3D surface measurement system using projected line patterns.
… abrasion of the stamping tools by measuring the surface of the products. A 3D vision system is developed for the real time online measurement of the product surface. In this thesis, there are three main research themes. First is to produce an industrial application. All the components of this …
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A three dimensional surface measurement and reconstruction system for respiratory function analysis
… not well suited in application for spirometric measurement for ambulatory monitoring. A sensor matrix measurement technique is investigated to identify suitable sensing elements with which to base an upper body surface measurement device that monitors respiration. This thesis is divided into two …
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Road Surface Measurement and Multi-Scale Modeling of Rubber Road Contact and Adhesion
… Pavement texture is a feature of the road surface that determines most tire-road interactions, and can be grouped into two classes: macro-texture, resulting mainly in the hysteretic component of friction, and micro-texture, resulting in adhesion. If both textures are maintained at high …
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Algorithms and design aspects of an automated vision based 3-D surface measurement system
… into a compatible system for measuring surfaces. Each of the important stages of such a measurement are dealt with in the text. Specifically, these include camera calibration, free network adjustment, location and centering of circular targets, orientation determination, the matching and …
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The Exploration of Sagittal Spine Curvature: Validating a surface topography method & relating curvature to physical function
… sagittal spine curvature by validating a new surface measurement tool and implementing it in a clinical setting in order to understand and relate it to physical function outcomes. The findings from the first stage of this thesis came from an exploratory analysis of a large physiotherapy …
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Object reconstruction using close-range all-round digital photogrammetry for applications in industry
… the ability to obtain accurate, non-contact measurements from data rapidly acquired with the object in situ. Along with these advantages, digital photogrammetry offers the potential for the automation or semi-automation of many of the conventional photogrammetric procedures, leading to …
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A performance analysis of ad-hoc ocean sensor network
… effects on the mobile nodes, in particular the surface current. However, the available mobility models (Random Waypoint, Gauss-Markov, Manhattan Grid and Reference Point Group) do not represent the real life mobility in an oceanic environment scenario. As a result, actual data of surface …
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Pharmaceutical powders in experiment and simulation : towards a fundamental understanding
… and triamterene) in tablets by measuring the surface fluorescence. A theoretical description of the accuracy of the surface measurement to correctly estimate the total content in a tablet ...
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Development of optical based characterisation and detection methods for quantitative and qualitative assessment of phytoplankton in their natural environment.
… for monitoring algae and pollution below the sea surface. There are, however, few, low cost, compact and portable measurement systems available for monitoring phytoplankton or pollution on the sea surface. This project investigates and develops a laser based surface measurement system along with …
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The use of 3D surface analysis techniques to investigate the wear of matt surface finish femoral stems in total hip replacement
… of wear behind the loosening and failure of matt surface finish femoral stems. By examining stems which have been explanted from patients, a method of wear classification has been developed, and also 3D surface measurement techniques have been employed to quantify wear through parametric …
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Error Estimations in the Design of a Terrain Measurement System
Terrain surface measurement is an important tool in vehicle design work as well as pavement classification and health monitoring. �Non-deformable terrains are the primary excitation to vehicles traveling over it, and therefore it is important to be able to quantify these terrain surfaces. …
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Strain measurement using neutron diffraction
… a study of improvement and application of strain measurement technique using neutron diffraction. A dedicated neutron strain scanner - ENGIN, funded by Ee. has been developed at ISIS. It has two radial collimators, allowing for the first time, measurements taken simultaneously at two orthogonal …
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The mensuration of textured surfaces using close-range digital photogrammetry for applications in industry
The mapping of rock surfaces in the open cast mining industry is of importance in assessing the fragmentation distribution of blasted rock, as well as for the profiling of vertical rock faces. This thesis reports on the development of a close range digital photogrammetric surface measurement system …
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A Galerkin Approach to Define Measured Terrain Surfaces with Analytic Basis Vectors to Produce a Compact Representation
… In this dissertation, non-deformable terrain surfaces are defined as a sequence of vectors, where each vector comprises terrain heights at locations oriented perpendicular to the direction of travel. The evolution and implications of terrain surface measurement techniques and existing methods …
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Comparison of the new vapor sorption analyzer to the traditional saturated salt slurry method and the dynamic vapor sorption instrument
… the Dynamic Vapor Sorption (DVS) instrument from Surface Measurement Systems Ltd. There have been several studies done to show that the humidity generating instruments are reliable in terms of their accuracy compared to the SSS method. The Vapor Sorption Analyzer (VSA) is a new type of isotherm …
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Investigation of electrochemical interfaces at the molecular level
… and electroplating are examined with in situ surface measurement techniques and density functional theory calculations. Experimental and computational studies presented herein will provide a fundamental understanding of the electrochemical systems examined and guide the field toward practical …
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Machine-learning-based measurement, modeling, and control of spatial variability in advanced manufacturing
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01