About: AMR Gradiometer for Mine Detection and Sensing     Goto   Sponge   NotDistinct   Permalink

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Description
  • We used anisotropic magnetoresistors (AMR's) to build an advanced mine detector. The sensing head involves a gradiometric pair of AMR sensors and a continuous-wave driven excitation coil, so the gradiometer is capable of detection ferromagnetic materials as well as diamagnetic metals. The sensors are specially arranged to suppress the large AC-excitation field, so the mine detector senses both DC and AC field gradient responses of the object of interest. Being limited by the sensor noise of 214 pTrms/sqrtHz at 1 kHz, we were able to detect an 50 mm x 50 mm x 1.5 mm aluminum test object in a 20 cm-depth using a 300uT, 1kHz excitation field.
  • We used anisotropic magnetoresistors (AMR's) to build an advanced mine detector. The sensing head involves a gradiometric pair of AMR sensors and a continuous-wave driven excitation coil, so the gradiometer is capable of detection ferromagnetic materials as well as diamagnetic metals. The sensors are specially arranged to suppress the large AC-excitation field, so the mine detector senses both DC and AC field gradient responses of the object of interest. Being limited by the sensor noise of 214 pTrms/sqrtHz at 1 kHz, we were able to detect an 50 mm x 50 mm x 1.5 mm aluminum test object in a 20 cm-depth using a 300uT, 1kHz excitation field. (en)
Title
  • AMR Gradiometer for Mine Detection and Sensing
  • AMR Gradiometer for Mine Detection and Sensing (en)
skos:prefLabel
  • AMR Gradiometer for Mine Detection and Sensing
  • AMR Gradiometer for Mine Detection and Sensing (en)
skos:notation
  • RIV/68407700:21230/11:00191101!RIV12-GA0-21230___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GD102/09/H082)
http://linked.open...iv/cisloPeriodika
  • 0
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 185384
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21230/11:00191101
http://linked.open...riv/jazykVysledku
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  • mine detection; magnetic sensors; AMR; gradiometer; eddy currents (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [13119AEB2C9A]
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  • Procedia Engineering
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 25
http://linked.open...iv/tvurceVysledku
  • Janošek, Michal
  • Ripka, Pavel
  • Vyhnánek, Jan
http://linked.open...ain/vavai/riv/wos
  • 000300512400087
issn
  • 1877-7058
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.proeng.2011.12.089
http://localhost/t...ganizacniJednotka
  • 21230
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