Title :
Evaluation of a micro motor with integrated MSM material
Author :
Hahn, M. ; Pagounis, E. ; Gatzen, H.H.
Author_Institution :
Inst. for Microtechnol., Hannover Univ., Germany
Abstract :
A system consisting of two stators and two stripes of magnetic Ni-Mn-Ga shape memory (MSM) material tied together by a connector is built. To improve the flux guide capabilities, a 25 μm soft magnetic layer (NiFe 81/19) is deposited below the coils. For initial tests, only one coil system is excited. Starting at 50 mA, the current is increased continuously. At 190 mA, a significant change is observed in the length of the MSM material. This test demonstrate the feasibility of building microactuators using MSM material.
Keywords :
coils; elongation; ferromagnetic materials; gallium alloys; iron alloys; manganese alloys; microactuators; nickel alloys; rotors; shape memory effects; soft magnetic materials; stators; NiMnGa; coils; connector; flux guide capabilities; integrated MSM material; length; magnetic shape memory; micro motor; microactuators; soft magnetic layer; stators; Coils; Connectors; Magnetic flux; Magnetic materials; Materials testing; Micromotors; Shape; Soft magnetic materials; Stators; System testing;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464275
