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 “"cantilever bending"”.
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Piezoelectric response of bone and tendon subjected to inhomogeneous stress
… are subjected to in-homogeneous stress, as in cantilever bending, they do not obey the classical piezoelectric theory, although the piezoelectric minerals quartz and tourmaline do. This thesis shows that an adequate, extended theory of piezoelectricity can be developed by including in addition …
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Impact of silicon nitride thickness on the infrared sensitivity of silicon nitride-aluminum microcantilevers
… of silicon nitride - aluminum bimaterial cantilever infrared sensors. A model predicts cantilever behavior by considering heat transfer within and from the cantilever, cantilever optical properties, cantilever bending mechanics, and thermomechanical noise. Silicon nitride-aluminum …
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The electromechanical effect in bone
… and z-dependence of the signal from dry bone in cantilever bending, a theory postulating a polarization proportional to the gradient of the stress was proposed. The present work is concerned with a further examination of the applicability of the stress gradient theory to both dry and wet bone. …
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A micromechanical biosensor with inherently differential readout
… biology in terms of cost, time and throughput. Cantilever-based micromechanical sensors detect biomolecular adsorption by means of surface-stress-induced cantilever bending. This technique enables sensitive, scalable and label-free detection of biomolecules in real-time. However, micromachined …
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The Fabrication of Integrated Strain Sensors for “Smart” Implants using a Direct Write Additive Manufacturing Approach
… greater than 16 were measured using a proven cantilever bending arrangement. This represented a seven to eight fold increase in sensitivity over commercial gauges that would be glued to the implant materials. The strain sensor fabrication process was specifically developed for directly …
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Quantitative Mechanical Properties of Carbon-based Surfaces Examined through Analysis of Cantilever Dynamics in Atomic Force Microscopy
… down to the atomic length-scale. Considering the cantilever shape in a dynamic contact, calibration of the experimental data was implemented to extract a quantitative elastic modulus and a spatially-resolved map of this value on graphite and graphene surface. The developed experimental technique …
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Characterisation of mechanical loss in fused silica ribbons for use in gravitational wave detector suspensions
… of the material loss of the fused silica, using cantilever bending modes of a fibre held at one end, gave values slightly higher than those used in the design of noise curves for Advanced LIGO. The measurements also showed a reduced thermoelastic damping effect from that theoretically calculated …
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Cyclic and Impact Resistance of FRP Repaired Poles
… on dented poles using 3-point, 4-point, and cantilever bending tests. The repair systems were able to develop the load carrying capacity of the damaged poles, and their behaviors were controlled by various types of failure modes like yielding of the metallic substrate, FRP tensile rupture, …
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Synthesis and Characterization of Branched Ionomers for Performance in Ionic Liquid – Swollen Ionic Polymer Transducers
… the series of sBPS – IPTs was demonstrated in cantilever bending through frequency response analysis and step responses in the time domain to low input voltages. Both the ion content and polymer topology of the sBPS ionomeric matrix demonstrated a significant effect on the final actuation …
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MEMS Piezoresistive Micro-Cantilever Arrays for Sensing Applications
… biomedical application. Among different options, cantilever micro-mechanical structures are one of the most promising technical solution for the realisation of MEMS detectors with high sensitivity. This thesis deals with the development of cantilever-based sensor arrays for chemical and biological …
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Ion-induced stress relaxation during the growth of cubic boron nitride thin films
… situ instrument based on laser deflectometry on cantilever structures and in situ ellipsometry, was used for in situ stress measurements. The characteristic evolution of the instantaneous stress during the layered growth of cBN films observed in IBAD experiments, could be reproduced for magnetron …