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 15 of 15 for “"magnetic sensing"”.
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Fully Distributed Multi-Material Magnetic Sensing Structures for Multiparameter DAS Applications
… demonstrates the first of its kind distributed magnetic field sensor based on a fiber optic distributed acoustic sensing (DAS) scheme. Ferromagnetic nickel and Metglas® were dispersed internally within a fiber optic preform and then drawn on an in-house fiber optic draw tower to lengths in the …
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Investigation of magnetic sensing system for in-place corrosion characterization in metals
… This document describes the development of magnetic sensing schemes to characterize corrosion of metals in situ. GMR magnetic field sensors are applied to overcome difficulties encountered with traditional corrosion detection methods. Magnetic measurements present a manner to monitor …
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Functional Materials and Device Concepts for Magnetic Sensing, Gas Detection and Energy Harvesting
… three areas of materials science and physics: magnetic-field sensing, energy harvesting, and gas detection. Although examined separately, they are linked by their potential integration into self-sustaining sensor platforms for Internet of Things (IoT) applications, amid growing demand for …
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Magnetic Field Sensing via Multi-Material Acoustic Sensing Optical Fibers with Magnetostrictive Cladding Inclusions
… are used to measure low strength alternating magnetic fields. Various fiber sensor configurations are tested and investigated to demonstrate sensing capabilities at different field magnitudes and frequencies. Distributed acoustic sensing fibers (DAS) have been largely studied and documented …
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Magnetic Cleanliness, Sensing, and Calibration for CubeSats
… are widely used on satellites for both attitude sensing and scientific observations. Spaceborne magnetometers have enabled the creation of accurate maps of Earth’s magnetic fields. However, these models have limited spatial and temporal resolution, and therefore are much less accurate in …
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Giant Magnetoresistance in Magnetic Multilayers Using a New Embossed Surface
… advantages for the technology sector of magnetic sensing.
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The Development of Alkoxy-Based Sol -Gel Processing for Magnetoresistive Manganite Thin Films
… regions, a highly-desirable characteristic for magnetic sensing applications.
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Non-linear Dynamic Transformer Modelling and Optimum Control Design of Switched-mode Power Supplies
… is based on adjusting the value of the current sensing resistor is also adopted. To facilitate control design, a control-oriented model is developed based on the full converter model through a simplification step. As demonstrated in the thesis, the control-oriented model is able to preserve the …
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High yield production of inorganic graphene-like materials (MoS₂, WS₂, BN) through liquid exfoliation testing key parameters
… cheap and efficient electronic materials for magnetic sensing and energy storage devices. The goal of this experiment is to use a general liquid-phase method to exfoliate and optimize a number of parameters that can yield the highest concentration of layered quantities of MoS₂, WS₂, and BN. …
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Microfluidic cancer cell isolation system using magnetic nanoparticle hybrids and advanced interdigitated electrode technology
… research has been conducted in improving magnetic sensing technologies for cell isolation systems. These technologies, through the popular biomarkers, i.e. DNA, RNA, proteins, antibodies, have already been implemented in clinical diagnosis and/or prognosis.An example of a successful …
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A micromachined magnetic field sensor for low power electronic compass applications
A micromachined magnetic field sensing system capable of measuring the direction of the Earths magnetic field has been fabricated, measured, and characterized. The system is composed of a micromachined silicon resonator combined with a permanent magnet, excitation and sensing coils, and a magnetic …
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The development of alkoxy-based sol-gel processing for magnetoresistive manganite thin films
… regions, a highly-desirable characteristic for magnetic sensing applications.
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Characterizing the Role of Magnetic Cues Underlying Spatial Behavior
In the 50+ years since the discovery of magnetic compass orientation by migratory songbirds, evidence for the use of magnetic cues has been obtained for a range of taxonomic groups, including several classes of vertebrate and invertebrate taxa. Surprisingly, however, the biophysical mechanisms and …
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Road vehicle recognition and classification using magnetic field measurement
… approach uses a roadside-installed, low-cost magnetic sensor and associated data collection system. The system measures magnetic field changes to count, detect, and classify passing vehicles into a number of vehicle types. We compare each vehicle using dynamic time warping (DTW), then extend …
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Development of a Compact Diamond NV- Magnetometer
… of eventually obtaining optically detected magnetic resonance (ODMR) signals for NV− centres under controlled magnetic fields. Key system components such as a stabilized laser excitation source, diamond NV− sample, and optical path components have been integrated into a modular design, …