Development of a Bio-Inspired Magnetostrictive Flow and Tactile Sensor

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dc.contributor.advisorFlatau, Alisonen_US
dc.contributor.authorMarana, Michael Adamen_US
dc.contributor.departmentAerospace Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2012-10-10T11:17:02Z
dc.date.available2012-10-10T11:17:02Z
dc.date.issued2012en_US
dc.description.abstractA magnetostrictive sensor was designed, constructed, and evaluated for use as flow or tactile sensor. Vibrissa-like beams (whiskers) were cut from sheets of the magnetostrictive iron-gallium alloy, Galfenol. These beams were cantilevered, with the fixed end of the whisker attached to a permanent magnet to provide the whisker with a magnetic bias. The free portion of the whisker was quasi-statically loaded, causing the whisker-like sensor to bend. The bending-induced strain caused the magnetization of the whisker to change, resulting in a changing magnetic field in the area surrounding the whisker. The change in magnetic field was detected by a giant magnetoresistance (GMR) sensor placed in proximity to the whisker. Therefore, the electrical resistance change of the GMR sensor was a function of the bending in the whisker due to external forces. Prototype design was aided using a bidirectionally coupled magnetoelastic model for computer simulation. The prototype was tested and evaluated under tactile loading and low speed flow conditions.en_US
dc.identifier.urihttp://hdl.handle.net/1903/13003
dc.subject.pqcontrolledEngineeringen_US
dc.subject.pquncontrolledBCMEMen_US
dc.subject.pquncontrolledBio-Inspireden_US
dc.subject.pquncontrolledGalfenolen_US
dc.subject.pquncontrolledMagnetostrictiveen_US
dc.titleDevelopment of a Bio-Inspired Magnetostrictive Flow and Tactile Sensoren_US
dc.typeThesisen_US

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