TY - JOUR
T1 - Soft-magnetic rotational microwings in an alternating magnetic field applicable to microflight mechanisms
AU - Miki, Norihisa
AU - Shimoyama, Isao
N1 - Funding Information:
Manuscript received October 8, 2001; revised November 6, 2002. This work was supported by the Program for promotion of Basic Research Activities for Innovative biosciences (PROBRAIN), under the supervision of the Ministry of Agriculture and Fisheries in Japan. Subject Editor C.-J. Kim.
Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 2003/4
Y1 - 2003/4
N2 - This paper presents microsized soft-magnetic rotational wings in an alternating magnetic field. The wireless power supply as well as control of magnetic microwings are readily applicable to microflight mechanisms. As a magnetic material, soft magnetic material, such as nickel-iron alloy was deposited via electroplating, which is a well-developed MEMS batch process. The magnetization of the soft-magnetic device, however, changes its direction and magnitude during rotation, where the shape magnetic anisotropy of the wings plays a vital role. The principle of the wing rotation in an alternating magnetic field was elucidated theoretically and showed favorable agreement with the experimental results with large-sized models. The aerodynamic performances of soft magnetic rotational wings were evaluated, including the microrotational wings 165 μg In weight consisting of 0.9-mm-long magnetic wings made of electroplated nickel-iron alloy and an axis of wing rotation made of a sharpened glass tube. The micromagnetic rotational wings presented here were utilized for microflight mechanisms, which achieved successful flights.
AB - This paper presents microsized soft-magnetic rotational wings in an alternating magnetic field. The wireless power supply as well as control of magnetic microwings are readily applicable to microflight mechanisms. As a magnetic material, soft magnetic material, such as nickel-iron alloy was deposited via electroplating, which is a well-developed MEMS batch process. The magnetization of the soft-magnetic device, however, changes its direction and magnitude during rotation, where the shape magnetic anisotropy of the wings plays a vital role. The principle of the wing rotation in an alternating magnetic field was elucidated theoretically and showed favorable agreement with the experimental results with large-sized models. The aerodynamic performances of soft magnetic rotational wings were evaluated, including the microrotational wings 165 μg In weight consisting of 0.9-mm-long magnetic wings made of electroplated nickel-iron alloy and an axis of wing rotation made of a sharpened glass tube. The micromagnetic rotational wings presented here were utilized for microflight mechanisms, which achieved successful flights.
KW - Microflight mechanism
KW - Microwings
KW - Rotational mechanism
KW - Soft-magnetic actuator
UR - http://www.scopus.com/inward/record.url?scp=0037390780&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037390780&partnerID=8YFLogxK
U2 - 10.1109/JMEMS.2003.809966
DO - 10.1109/JMEMS.2003.809966
M3 - Article
AN - SCOPUS:0037390780
VL - 12
SP - 221
EP - 227
JO - Journal of Microelectromechanical Systems
JF - Journal of Microelectromechanical Systems
SN - 1057-7157
IS - 2
ER -