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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 20 of 43 for “"Magnetic Induction"”.
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Magnetic Induction in Nuclear Quadrupole Resonance
Made available in DSpace on 2015-05-12T17:11:48Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0009041.PDF: 3144497 bytes, checksum: 8186061c8593954abea6f18db93a5276 (MD5) Previous issue date: 1954
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Structural magnetic induction dampers in buildings
… thesis discusses the feasibility of structural magnetic induction dampers for dampening mechanical vibrations in buildings subjected to strong dynamic excitations. The concept of energy harvesting in various fields of engineering is first examined. Then it is applied to the design of magnetic …
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Instrumentation for low-conductivity magnetic induction tomography
Magnetic Induction Tomography (MIT) belongs to a group of techniques for the non invasive imaging of the passive electrical properties of objects which also includes Electrical Impedance Tomography (EIT). In MIT, arrays of coils are employed to induce eddy currents within an object and to detect …
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Parallel Image Reconstruction Systems for Magnetic Induction Tomography
Magnetic Induction Tomography (MIT) is a contactless and non-invasive method for imaging the passive electrical properties of objects. An MIT system employs an array of excitation coils in order to induce eddy currents within an object and then uses detection coils to measure the resulting magnetic …
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Development of magnetic induction machines for micro turbo machinery
… design, fabrication, and testing of an axial-gap magnetic induction micro machine, which is a two-phase planar motor in which the rotor is suspended above the stator via mechanical springs, or tethers. The micro motor is fabricated from thick layers of electroplated NiFe and copper, by our …
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Magnetic induction systems to harvest energy from mechanical vibrations
This thesis documents the design process for magnetic induction systems to harvest energy from mechanical vibrations. Two styles of magnetic induction systems - magnet-through-coil and magnet-across-coils - were analyzed. MATLAB models were created to serve as a design aid and optimization tool for …
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Magnetic Induction for In-situ Healing of Polymeric Material
… ability to heal when exposed to an alternating magnetic field. Several types of magnetic particulate were inspected for use in the production of polymer composite test samples. The types of particulate used in sample production were two supplies of γ-Fe₂O₃, one supply of α-Fe₂O₃, and one supply …
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Experiments for the Control and Localization of Robots using Magnetic Induction
Magnetic induction wireless communications are currently being studied as an alternative for short-range communications in underwater robotics and wireless sensor networks. We demonstrate several systems that use magnetic induction coil antennas for robot control and localization. We start with …
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Three Dimensional Imaging of Helicon Wave Fields via Magnetic Induction Probes
The new diagnostic methods developed in this work (both probe characterization and analysis of measured data) provide fundamental insight into laboratory helicon plasma. The methods and results derived here will supplement and aid the design of future helicon plasma sources.
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A Study on High-Speed Magnetic Induction Tomography Instrumentation Aiming at Low Conductivity Applications
Magnetic Induction Tomography is a contactless imaging technique which uses a coil array to induce eddy currents to a conductive object and detects the secondary magnetic field containing the conductivity information. Magnetic Induction Tomography instrumentation for low conductivity applications …
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Design and characterization of the measurement electronics for a magnetic induction tomography imaging system
A data acquisition transceiver circuit for magnetic induction tomography (MIT) has been developed. MIT is a type of tomography technique that is sensitive to the conductivity of objects, and which can be used in both industrial and biomedical applications. A detailed design process of the MIT …
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Development of a digital signal processing measurement platform for biomedical magnetic induction tomography and spectroscopy
Magnetic Induction Tomography (MIT) is a non-invasive technique that utilises the passive electrical properties of a material to produce cross-sectional images. In MIT system, the signals detected by the sensors must be measured using a phase sensitive technique. A sub-millidegree phase stability …
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Modeling of chemical mechanical polishing for shallow trench isolation
… design, fabrication, and testing of an axial-gap magnetic induction micro machine, which is a two-phase planar motor in which the rotor is suspended above the stator via mechanical springs, or tethers. The micro motor is fabricated from thick layers of electroplated NiFe and copper, by our …
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Reconfigurable Wireless Communication Systems in Complex Environments
… communication techniques based on electro-magnetic (EM) and acoustic signals in these environments suffer from varies of challenges, such as high absorption, long delay, limited frequency bands, and signal blockage. In this thesis, we propose to use reconfigurable magnetic-induction (MI) …
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Kontaktlose Überwachung von Atemtätigkeit und Herzaktion mittels magnetischer Bioimpedanzmessung im neonatalen Tiermodell
BACKGROUND: Magnetic induction measurement (MIM) allows the identification of resistance in biologic tissues by alternating magnetic fields. These occur when well-conducting (blood) and poor-conducting matter (air) is moved through the thorax during heart and lung activity. As a result, allocation …
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Dynamic Instabilities in Structures with Nonholonomic Constraints
… interaction due to Lorentz force coming from the magnetic induction field within the solenoid. After determining the equilibrium of the system, a stability analysis is preformed, and it is shown that the device still undergoes a Hopf bifurcation. This then allows for a post critical study, whereby …
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Privacy-preserving authentication and billing for dynamic charging of electric vehicles
… to charge their batteries while moving through magnetic induction between the wireless charging pad and the receiving coil attached to the EV's battery. A pre-requisite for dynamic charging in practice is the support of cyber infrastructure and protocols. Although many research efforts aim to …
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