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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F12%3A00192746%21RIV13-MSM-21230___
rdf:type
skos:Concept n3:Vysledek
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S0924424712001719
dcterms: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.
dcterms:title
AMR Gradiometer for Mine Detection AMR Gradiometer for Mine Detection
skos:prefLabel
AMR Gradiometer for Mine Detection AMR Gradiometer for Mine Detection
skos:notation
RIV/68407700:21230/12:00192746!RIV13-MSM-21230___
n3:predkladatel
n4:orjk%3A21230
n5:aktivita
n18:S n18:P
n5:aktivity
P(GD102/09/H082), S
n5:cisloPeriodika
0
n5:dodaniDat
n19:2013
n5:domaciTvurceVysledku
n8:9294635 n8:7555180 n8:3157644
n5:druhVysledku
n15:J
n5:duvernostUdaju
n13:S
n5:entitaPredkladatele
n10:predkladatel
n5:idSjednocenehoVysledku
121846
n5:idVysledku
RIV/68407700:21230/12:00192746
n5:jazykVysledku
n20:eng
n5:klicovaSlova
mine detection; magnetic sensors; AMR; gradiometer; eddy currents
n5:klicoveSlovo
n6:mine%20detection n6:magnetic%20sensors n6:gradiometer n6:AMR n6:eddy%20currents
n5:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n5:kontrolniKodProRIV
[B8CB10D70264]
n5:nazevZdroje
Sensors and Actuators
n5:obor
n7:JB
n5:pocetDomacichTvurcuVysledku
3
n5:pocetTvurcuVysledku
3
n5:projekt
n21:GD102%2F09%2FH082
n5:rokUplatneniVysledku
n19:2012
n5:svazekPeriodika
186
n5:tvurceVysledku
Ripka, Pavel Vyhnánek, Jan Janošek, Michal
n5:wos
000310389500018
s:issn
0924-4247
s:numberOfPages
5
n12:doi
10.1016/j.sna.2012.03.007
n16:organizacniJednotka
21230