Enhancing the sensitivity of magnetoelectric sensors by increasing the operating frequency

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dc.contributorVirginia Tech. Department of Materials Science and Engineeringen
dc.contributorU.S. Army Research Laboratoryen
dc.contributorOakland Universityen
dc.contributor.authorPetrie, Jonathanen
dc.contributor.authorViehland, Dwight D.en
dc.contributor.authorGray, Daviden
dc.contributor.authorMandal, Sanjayen
dc.contributor.authorSreenivasulu, Gollapudien
dc.contributor.authorSrinivasan, Gopalanen
dc.contributor.authorEdelstein, Alan S.en
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2015-04-24en
dc.date.accessioned2015-05-21T19:47:33Zen
dc.date.available2015-05-21T19:47:33Zen
dc.date.issued2011-12-15en
dc.description.abstractWe present a field modulation technique that increases the operating frequency of magnetoelectric ( ME) sensors so that it can match the mechanical resonance frequency of the sensor. This not only improves the sensitivity but also reduces the effect of 1/f noise that is inherent at low frequencies. The technique, which is shown to apply to both symmetric and asymmetric ME sensors, relies on the strong, nonlinear magnetic field dependence of the magnetostriction. The combination of a lower 1/f noise and enhanced response at resonance has increased the signal to noise ratio of a symmetric sensor by two orders of magnitude. The detection limit of this sensor was lowered from 90 to 7 pT/root Hz at 1Hz in a magnetically unshielded environment. (C) 2011 American Institute of Physics. [doi:10.1063/1.3668752]en
dc.description.sponsorshipUnited States. Defense Advanced Research Projects Agency. Uncooled Magnetic Sensor, Heterostructural Uncooled Magnetic Sensors (HUMS) programen
dc.format.extent5 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPetrie, Jonathan, Viehland, Dwight, Gray, David, Mandal, Sanjay, Sreenivasulu, Gollapudi, Srinivasan, Gopalan, Edelstein, Alan S. (2011). Enhancing the sensitivity of magnetoelectric sensors by increasing the operating frequency. Journal of Applied Physics, 110(12). doi: 10.1063/1.3668752en
dc.identifier.doihttps://doi.org/10.1063/1.3668752en
dc.identifier.issn0021-8979en
dc.identifier.urihttp://hdl.handle.net/10919/52496en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/jap/110/12/10.1063/1.3668752en
dc.language.isoen_USen
dc.publisherAmerican Institute of Physicsen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectMagnetic field sensorsen
dc.subjectMagnetic resonanceen
dc.subjectMagnetic sensorsen
dc.subject1/f noiseen
dc.subjectMagnetic fieldsen
dc.titleEnhancing the sensitivity of magnetoelectric sensors by increasing the operating frequencyen
dc.title.serialJournal of Applied Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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