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Dynamic transduction characterization of magnetostrictive actuators /Ackerman, Anthony E., January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 140-143). Also available via the Internet.
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Development of bulk-scale and thin-film magnetostrictive sensorLiang, Cai, Prorok, Barton Charles. January 2007 (has links) (PDF)
Dissertation (Ph.D.)--Auburn University, 2007. / Abstract. Vita. Includes bibliographic references (p.202-231).
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Optimization of electromagnetic acoustic transducers for nondestructive evaluation of concrete structuresPenamakuru, Siva Krishna Chaitanya January 2008 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2008. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on September 12, 2008) Includes bibliographical references.
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Terfenol based optical phase modulator and magnetometer /Kamdar, Ketan Dilip, January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 57-59). Also available via the Internet.
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Novel sensor for rapid detection of blood cell types magnetostrictive microcantilevers /Orono, Lisa Lorraine, January 2005 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2005. / Abstract. Vita. Includes bibliographic references.
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Dynamic transduction characterization of magnetostrictive actuatorsAckerman, Anthony E. 04 December 2009 (has links)
The objective of this thesis is to develop an analysis approach for formulation of transduction or input/output representations for magnetostrictive actuators. This transduction model is developed through application of an electro-magneto-mechanical impedance modeling approach which combines both the mechanical dynamics and coupled behavior of the actuator device. Lumped and continuous mechanical impedance elements model the actuator dynamics and the constitutive relationships for Terfenol-D characterize the electro-magneto-mechanical interaction. Experimental analysis of a Terfenol-D actuator serves to verify the developed models and provides an indication of actuator non-linearity.
The developed transduction model allows for various device behavior analysis including dissipative power consumption, force and stroke output, and efficiency as a transducer. An actuator design strategy based upon the dynamics of the actuator and a driven external system is presented and allows for analysis of various actuator behaviors in terms of device parameters. The Terfenol-D actuator as a collocated actuator/sensor is also made possible with the transduction model. / Master of Science
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Terfenol based optical phase modulator and magnetometerKamdar, Ketan Dilip 30 June 2009 (has links)
Two new fiber optic magnetostrictive phase modulators and magnetometers using the highly magnetostrictive rare-earth iron compound Tb<sub>x</sub>Dy<sub>l-x</sub>Fe₂ are investigated. They demonstrated to have a high sensitivity, dynamic range, minimum field detectability, and a better structural suitability than metallic glasses. For the first sensor, the experimental linear phase shifting coefficient was 1.102 rad/Vp-m with the corresponding phase shift nonnalized to the magnetic field of 0.306 radiO-m. For the second sensor, the experimental linear phase shifting coefficient was 0.5 rad/Vp-m with the corresponding phase shift nonnalized to the magnetic field of 0.136 rad/G-m. A minimum detectable phase shift of better than 1 μrad was obtained, which corresponds to 2 μG/m for a 4 Hz bandwidth and 1 μG/â HZ per meter of fiber interaction length. The projected minimum detectable magnetic field for 30 meters, for the first sensor, is thus seen to be 3pT/â HZ. The experimental results presented have clearly demonstrated the utility of the Terfenol based magnetostrictive fiber optic phase modulator and magnetometer. / Master of Science
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Modeling of 3D Magnetostrictive Systems with Application to Galfenol and Terfenol-D TransducersChakrabarti, Suryarghya 19 December 2011 (has links)
No description available.
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