Wide frequency range electromechanical actuator

Details Wide frequency range electromechanical actuator Wide frequency range electromechanical actuator

2006-06-27

2006-06-27

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323010, C310S323020, C310S323030, C310S323040, C310S323050, C310S323080

Reexamination Certificate

active

07067958

ABSTRACT:
An electromechanical actuator10is disclosed, having drive elements (14a–d) movable in two dimensions and connected to an actuator backing (12). The actuator backing (12) is made of a material being ferromechanically inactive. Furthermore, the joint between the drive element (14a–d) and the actuator backing (12) is stiff and highly stable. This is achieved by use of an irreversible joint made e.g. by thermoset plastic glues, diffusion bonding or co-sintering. Co-sintering is to prefer. The actuator backing (12) material is selected to be stiff, preferably having a stiffness above 70 GPa and more preferably above 100 GPa, and having a high heat conductivity, preferably above 5 W/mK and more preferably above 10 W/mK, Electrodes (22) are preferably integrated in the actuator backing to increase stiffness as well as improving the heat conductivity. The drive elements (14a–d) are preferably covered (28, 26), at least at the driving surface, by heat-conducting material.

REFERENCES:
patent: 5345137 (1994-09-01), Funakubo et al.
patent: 5633554 (1997-05-01), Kaji
patent: 5952766 (1999-09-01), Mukohjima et al.
patent: 6066911 (2000-05-01), Lindemann et al.
patent: 6184609 (2001-02-01), Johansson et al.
patent: 6313566 (2001-11-01), Cunningham et al.
patent: 6337532 (2002-01-01), Johansson et al.
patent: 6838808 (2005-01-01), Tanaka
patent: 6864620 (2005-03-01), Takeuchi et al.
patent: 2003/0085633 (2003-05-01), Marth
patent: 44 08 618 (1995-09-01), None
patent: WO 03/094252 (2003-11-01), None
Hengchu Cao et al., “Nonlinear Deformation of Ferroelectric Ceramics”, Journal of the American Ceramic Society, vol. 76, No. 4, 1993, pp. 890-896.
Stefan Johansson, “One approach towards the fabrication of a microrobot system”, Materials Science and Engineering C2, 1995, pp. 141-149.

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