TY - GEN
T1 - Intrinsic position sensing of a Ni-Mn-Ga microactuator
AU - Auernhammer, Daniel
AU - Kohl, Manfred
AU - Krevet, Berthold
AU - Ohtsuka, Makoto
PY - 2008/12/1
Y1 - 2008/12/1
N2 - This paper presents an investigation of the intrinsic magnetoresistance of a ferromagnetic shape memory alloy (FSMA) microactuator for position sensing. The microactuator is designed as a double-beam cantilever of a polycrystalline Ni-Mn-Ga thin film, which exhibits both, a martensitic transformation in the temperature range 333-359 K and a ferromagnetic transition at about 370 K. The microactuator is placed in the inhomogeneous magnetic field of a miniature Nd-Fe-B magnet causing a mixed thermo-magneto-resistance effect upon actuation. The maximum in-plane magnetic field is about 0.38 Tesla. In this case, the maximum magnetoresistance (MR) is 0.19%.
AB - This paper presents an investigation of the intrinsic magnetoresistance of a ferromagnetic shape memory alloy (FSMA) microactuator for position sensing. The microactuator is designed as a double-beam cantilever of a polycrystalline Ni-Mn-Ga thin film, which exhibits both, a martensitic transformation in the temperature range 333-359 K and a ferromagnetic transition at about 370 K. The microactuator is placed in the inhomogeneous magnetic field of a miniature Nd-Fe-B magnet causing a mixed thermo-magneto-resistance effect upon actuation. The maximum in-plane magnetic field is about 0.38 Tesla. In this case, the maximum magnetoresistance (MR) is 0.19%.
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U2 - 10.1115/SMASIS2008-378
DO - 10.1115/SMASIS2008-378
M3 - Conference contribution
AN - SCOPUS:78149371508
SN - 9780791843314
T3 - Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
SP - 265
EP - 271
BT - Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
T2 - ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
Y2 - 28 October 2008 through 30 October 2008
ER -