About: AMR Gradiometer for Mine Detection     Goto   Sponge   Distinct   Permalink

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Description
  • Anisotropic magnetoresistors (AMRs) are used 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 of 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 and electronics noise of 268 pT/sqrtHz at 1 kHz, we were able to detect a 50 mm x 50 mm x 1.5 mm aluminum test object in a 20 cm depth using a 150 uT, 1-kHz excitation field.
  • Anisotropic magnetoresistors (AMRs) are used 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 of 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 and electronics noise of 268 pT/sqrtHz at 1 kHz, we were able to detect a 50 mm x 50 mm x 1.5 mm aluminum test object in a 20 cm depth using a 150 uT, 1-kHz excitation field. (en)
Title
  • AMR Gradiometer for Mine Detection
  • AMR Gradiometer for Mine Detection (en)
skos:prefLabel
  • AMR Gradiometer for Mine Detection
  • AMR Gradiometer for Mine Detection (en)
skos:notation
  • RIV/68407700:21230/12:00192746!RIV13-MSM-21230___
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GD102/09/H082), S
http://linked.open...iv/cisloPeriodika
  • 0
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
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  • 121846
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21230/12:00192746
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • mine detection; magnetic sensors; AMR; gradiometer; eddy currents (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [B8CB10D70264]
http://linked.open...i/riv/nazevZdroje
  • Sensors and Actuators
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http://linked.open...ichTvurcuVysledku
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http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 186
http://linked.open...iv/tvurceVysledku
  • Janošek, Michal
  • Ripka, Pavel
  • Vyhnánek, Jan
http://linked.open...ain/vavai/riv/wos
  • 000310389500018
issn
  • 0924-4247
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.sna.2012.03.007
http://localhost/t...ganizacniJednotka
  • 21230
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