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dc.contributorVirginia Tech. Department of Materials Science and Engineeringen_US
dc.contributorU.S. Army Research Laboratoryen_US
dc.contributorOakland Universityen_US
dc.contributor.authorPetrie, Jonathanen_US
dc.contributor.authorViehland, Dwight D.en_US
dc.contributor.authorGray, Daviden_US
dc.contributor.authorMandal, Sanjayen_US
dc.contributor.authorSreenivasulu, Gollapudien_US
dc.contributor.authorSrinivasan, Gopalanen_US
dc.contributor.authorEdelstein, Alan S.en_US
dc.date.accessioned2015-05-21T19:47:33Z
dc.date.available2015-05-21T19:47:33Z
dc.date.issued2011-12-15
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_US
dc.identifier.issn0021-8979en_US
dc.identifier.urihttp://hdl.handle.net/10919/52496
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_US
dc.description.sponsorshipUnited States. Defense Advanced Research Projects Agency. Uncooled Magnetic Sensor, Heterostructural Uncooled Magnetic Sensors (HUMS) programen_US
dc.format.extent5 pagesen_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_USen_US
dc.publisherAmerican Institute of Physicsen_US
dc.subjectMagnetic field sensorsen_US
dc.subjectMagnetic resonanceen_US
dc.subjectMagnetic sensorsen_US
dc.subject1/f noiseen_US
dc.subjectMagnetic fieldsen_US
dc.titleEnhancing the sensitivity of magnetoelectric sensors by increasing the operating frequencyen_US
dc.typeArticle - Refereeden_US
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/jap/110/12/10.1063/1.3668752en_US
dc.date.accessed2015-04-24en_US
dc.title.serialJournal of Applied Physicsen_US
dc.identifier.doihttps://doi.org/10.1063/1.3668752
dc.type.dcmitypeTexten_US


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