TY - JOUR
T1 - Bi-Directional Giant Magneto Impedance Sensor
AU - Uppili, Harsha
AU - Daglen, Bevin C.
N1 - Discover the breakthrough in magnetic field sensing with a compact double-spiral sensor. Explore the high permeability and low coercivity of electrodeposited Ni-Fe permalloy for bi-directional detection.
PY - 2013/9
Y1 - 2013/9
N2 - A thin film giant magneto impedance (GMI) based on magnetic field sensor has been developed using electrodeposited Ni-Fe permalloy. Chemical composition, surface morphology, and magnetic properties of Ni-Fe permalloy were char-acterized as a function of plateup parameters, and process conditions were established to deposit a Ni-Fe thin film with a high permeability (~1000) and a low coercivity (0.6 Oersted). Conventional GMI sensors are uni-directional and are several millimeters long. In this work, a spiral-shaped sensor using electroplated Ni-Fe permalloy to detect bi-directional magnetic field is reported. Excellent bi-directional magnetic field sensing has been demonstrated using the 1 mm2 compact double-spiral structure.
AB - A thin film giant magneto impedance (GMI) based on magnetic field sensor has been developed using electrodeposited Ni-Fe permalloy. Chemical composition, surface morphology, and magnetic properties of Ni-Fe permalloy were char-acterized as a function of plateup parameters, and process conditions were established to deposit a Ni-Fe thin film with a high permeability (~1000) and a low coercivity (0.6 Oersted). Conventional GMI sensors are uni-directional and are several millimeters long. In this work, a spiral-shaped sensor using electroplated Ni-Fe permalloy to detect bi-directional magnetic field is reported. Excellent bi-directional magnetic field sensing has been demonstrated using the 1 mm2 compact double-spiral structure.
KW - bi-directional sensor
KW - giant magneto impedance
KW - permalloy
UR - https://doi.org/10.4236/ampc.2013.35036
U2 - 10.4236/ampc.2013.35036
DO - 10.4236/ampc.2013.35036
M3 - Article
VL - 3
JO - Advances in Materials Physics and Chemistry
JF - Advances in Materials Physics and Chemistry
IS - 5
ER -