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Thermally Controlled Magnetization Actuator for Microrelays

Etsu HASHIMOTO, Hidenao TANAKA, Yoshio SUZUKI, Yuji UENISHI, Akinori WATABE

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Summary :

A thermally controlled magnetization actuator (TCMA) is proposed for micro-mechanical relays. It is actuated by changing the local magnetization of the structure by remote heating using a laser beam. It is fabricated by nickel surface micromachining (a fabrication technique using nickel electroplating). The optical power of the laser diode used to drive the TCMA is about 30 mW. The switching time of the microrelay was experimentally measured to be 10 ms, the same as that of a conventional mechanical relay. The contact force was calculated to be 20 µN, which can be improved by increasing the size of the TCMA.

Publication
IEICE TRANSACTIONS on Electronics Vol.E80-C No.2 pp.239-245
Publication Date
1997/02/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Micromachine Technology)
Category
Actuator

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