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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F11%3A00191101%21RIV12-GA0-21230___
rdf:type
n5:Vysledek skos:Concept
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S1877705811057584
dcterms: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.
dcterms:title
AMR Gradiometer for Mine Detection and Sensing AMR Gradiometer for Mine Detection and Sensing
skos:prefLabel
AMR Gradiometer for Mine Detection and Sensing AMR Gradiometer for Mine Detection and Sensing
skos:notation
RIV/68407700:21230/11:00191101!RIV12-GA0-21230___
n5:predkladatel
n6:orjk%3A21230
n3:aktivita
n12:P
n3:aktivity
P(GD102/09/H082)
n3:cisloPeriodika
0
n3:dodaniDat
n15:2012
n3:domaciTvurceVysledku
n19:3157644 n19:7555180 n19:9294635
n3:druhVysledku
n9:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
185384
n3:idVysledku
RIV/68407700:21230/11:00191101
n3:jazykVysledku
n10:eng
n3:klicovaSlova
mine detection; magnetic sensors; AMR; gradiometer; eddy currents
n3:klicoveSlovo
n4:AMR n4:mine%20detection n4:eddy%20currents n4:gradiometer n4:magnetic%20sensors
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[13119AEB2C9A]
n3:nazevZdroje
Procedia Engineering
n3:obor
n20:JB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n21:GD102%2F09%2FH082
n3:rokUplatneniVysledku
n15:2011
n3:svazekPeriodika
25
n3:tvurceVysledku
Vyhnánek, Jan Janošek, Michal Ripka, Pavel
n3:wos
000300512400087
s:issn
1877-7058
s:numberOfPages
5
n18:doi
10.1016/j.proeng.2011.12.089
n11:organizacniJednotka
21230