NDLI: Using Magneto-Optical Measurements for the Evaluation of a Hybrid Magnetic Shape Memory (MSM)-Based Microactuator

Content Provider	IEEE Xplore Digital Library
Author	Spasova, B. Wurz, M.C. Ruffert, C. Norpoth, J. Jooss, C. Gatzen, H.H.
Copyright Year	1965
Abstract	Magnetic shape memory (MSM) materials present a new class of alloys, which can be used for creating electromagnetic microactuators facilitating a linear motion. The concept of the hybrid MSM microactuator pursued is using a pair of discrete MSM strips sandwiched between microstators. For the microstator fabrication, MEMS technology is applied. The two MSM strips are elongated alternatively, with one strip showing strain when exposed to a magnetizing field, while the other one is mechanically collapsed by its elongating counterpart, and vice versa. For inducing the elongation in the MSM strips, a critical field strength H _crit has to be exceeded in vertical direction within the MSM strip. For analyzing what magnetic field strength is reached by the microstators and if it is greater than the critical field strength H _crit required to inducing a reorientation of the twin variants in the MSM material, magneto-optical measurements were carried out.
Sponsorship	IEEE Magnetics Society
Starting Page	2256
Ending Page	2259
Page Count	4
File Size	849952
File Format	PDF
ISSN	00189464
Volume Number	46
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Shape measurement Microactuators Strips Magnetic materials Shape memory alloys Magnetic field measurement Electromagnetic measurements Fabrication Micromechanical devices Magnetic field induced strain microactuator Magnetic microelectromechanical systems magnetic shape memory (MSM) material magneto-optical measurements
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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