Title:
アクチュエータの減衰方法およびアクチュエータ
Document Type and Number:
Japanese Patent JP3612670
Kind Code:
B1
Abstract:
An actuator includes a piezoelectric element (12), and a displacement enlargement mechanism (14) which has a movable portion configured to be displaced as the piezoelectric element is displaced and enlarges an amount of displacement of the piezoelectric element. A restraint member (30) is fixed to the movable portion with an elastic or viscoelastic body (32) therebetween and convert vibrational energy of the movable portion into thermal energy based on deformation of the elastic or viscoelastic body, thereby lowering a resonance peak amplitude of the actuator.
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Inventors:
Mori Hideki
Application Number:
JP2004073233A
Publication Date:
January 19, 2005
Filing Date:
March 15, 2004
Export Citation:
Assignee:
Akita
International Classes:
H01L41/09; H02N2/00; H02N2/04; (IPC1-7): H02N2/00
Domestic Patent References:
| JP61224884A | ||||
| JP329820U | ||||
| JP360084A | ||||
| JP3334450B2 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto