Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 221-227 |
| Number of pages | 7 |
| Journal | Journal of Microelectromechanical Systems |
| Volume | 12 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 Apr |
| Externally published | Yes |
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Keywords
- Microflight mechanism
- Microwings
- Rotational mechanism
- Soft-magnetic actuator
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering
Cite this
Soft-magnetic rotational microwings in an alternating magnetic field applicable to microflight mechanisms. / Miki, Norihisa; Shimoyama, Isao.
In: Journal of Microelectromechanical Systems, Vol. 12, No. 2, 04.2003, p. 221-227.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Soft-magnetic rotational microwings in an alternating magnetic field applicable to microflight mechanisms
AU - Miki, Norihisa
AU - Shimoyama, Isao
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
VL - 12
SP - 221
EP - 227
JO - Journal of Microelectromechanical Systems
JF - Journal of Microelectromechanical Systems
SN - 1057-7157
IS - 2
ER -