Kim, Dohun Na, Jiwon Jeung, Won Young 2024-01-20T22:00:38Z 2024-01-20T22:00:38Z 2021-09-03 2009-03 1226-1750 https://pubs.kist.re.kr/handle/201004/132710 The measurement of external magnetic field orientation using Giant Magneto Impedance (GMI) sensors has been performed. A soft magnetic alloy Of CO30Fe34Ni36 was electroplated on a Si wafer with a CoFeNi seed layer. V-shaped microwire patterns were formed using a conventional photolithography process. An external magnetic field was generated by a rectangular AlNiCo permanent magnet. The reference direction was defined as the external magnetic field direction oriented in the middle of 2 GMI devices. As the orientation of the magnetic field deviated from the reference direction, variation in the field component along each device introduced voltage changes. It was found that, by taking the voltage difference between the left and right arms of the V-shaped device, the nonlinearity of each device could be significantly reduced. The fabricated angle sensor had a linear range of approximately 70 degrees and an overall sensitivity of approximately 10 mV. English KOREAN MAGNETICS SOC Angle Sensors Based on Oblique Giant Magneto Impedance Devices Article 10.4283/JMAG.2009.14.1.042 1 JOURNAL OF MAGNETICS, v.14, no.1, pp.42 - 46 JOURNAL OF MAGNETICS 14 1 42 46 scie scopus kci ART001329384 000271196400010 2-s2.0-70349795724 Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Materials Science Physics Article Giant Magneto Impedance (GMI) effect uniaxial anisotropy magnetic sensor differential amplification linear response