. . "Ripka, Pavel" . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . . "3"^^ . . "RIV/68407700:21230/12:00192746" . . "0" . "186" . . "3"^^ . "AMR Gradiometer for Mine Detection" . . "AMR Gradiometer for Mine Detection" . "10.1016/j.sna.2012.03.007" . "121846" . . "mine detection; magnetic sensors; AMR; gradiometer; eddy currents"@en . "0924-4247" . . "AMR Gradiometer for Mine Detection"@en . . . "000310389500018" . "[B8CB10D70264]" . "Sensors and Actuators" . "P(GD102/09/H082), S" . "RIV/68407700:21230/12:00192746!RIV13-MSM-21230___" . "21230" . . "Vyhn\u00E1nek, Jan" . "http://www.sciencedirect.com/science/article/pii/S0924424712001719" . "5"^^ . . . . "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 . . "Jano\u0161ek, Michal" . . "AMR Gradiometer for Mine Detection"@en . .