Intrinsic position sensing of a Ni-Mn-Ga microactuator

Daniel Auernhammer; Manfred Kohl; Berthold Krevet; Makoto Ohtsuka

doi:10.1115/SMASIS2008-378

Intrinsic position sensing of a Ni-Mn-Ga microactuator

Daniel Auernhammer, Manfred Kohl, Berthold Krevet, Makoto Ohtsuka

Center for Mineral Processing and Metallurgy (CMPM)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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%.

Original language	English
Title of host publication	Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
Pages	265-271
Number of pages	7
DOIs	https://doi.org/10.1115/SMASIS2008-378
Publication status	Published - 2008 Dec 1
Event	ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008 - Ellicott City, MD, United States Duration: 2008 Oct 28 → 2008 Oct 30

Publication series

Name	Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
Volume	1

Other

Other	ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008
Country	United States
City	Ellicott City, MD
Period	08/10/28 → 08/10/30

ASJC Scopus subject areas

Civil and Structural Engineering
Control and Systems Engineering
Mechanics of Materials
Building and Construction

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Auernhammer, D., Kohl, M., Krevet, B., & Ohtsuka, M. (2008). Intrinsic position sensing of a Ni-Mn-Ga microactuator. In Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008 (pp. 265-271). (Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008; Vol. 1). https://doi.org/10.1115/SMASIS2008-378

Intrinsic position sensing of a Ni-Mn-Ga microactuator. / Auernhammer, Daniel; Kohl, Manfred; Krevet, Berthold; Ohtsuka, Makoto.

Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008. 2008. p. 265-271 (Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Auernhammer, D, Kohl, M, Krevet, B & Ohtsuka, M 2008, Intrinsic position sensing of a Ni-Mn-Ga microactuator. in Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008. Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008, vol. 1, pp. 265-271, ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008, Ellicott City, MD, United States, 08/10/28. https://doi.org/10.1115/SMASIS2008-378

Auernhammer D, Kohl M, Krevet B, Ohtsuka M. Intrinsic position sensing of a Ni-Mn-Ga microactuator. In Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008. 2008. p. 265-271. (Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008). https://doi.org/10.1115/SMASIS2008-378

Auernhammer, Daniel ; Kohl, Manfred ; Krevet, Berthold ; Ohtsuka, Makoto. / Intrinsic position sensing of a Ni-Mn-Ga microactuator. Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008. 2008. pp. 265-271 (Proceedings of the ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS2008).

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