Power plants – Motor operated by expansion and/or contraction of a unit of... – Mass is a solid
Reexamination Certificate
2007-03-13
2007-03-13
Nguyen, Hoang (Department: 3748)
Power plants
Motor operated by expansion and/or contraction of a unit of...
Mass is a solid
C060S528000, C310S306000
Reexamination Certificate
active
11114504
ABSTRACT:
An architecture shape memory alloy (SMA) actuators is presented called Segmented Binary Control (SBC). Instead of controlling the phase transition of the entire SMA wire as a single plant, we divide the SMA wire into many segments, each of which is controlled separately as an ON-OFF finite-state process. SBC produces a displacement as the addition of small displacements generated by the individual segments. Furthermore, the segmented architecture of SMA wires is extended to a multi-axis actuator array by arranging them in a two-dimensional array, so that the multi-axis control may be streamlined and coordinated. Moreover, the 2-D segmentation can be so designed that coordinated gross motion as well as independent fine movements may be generated with minimum complexity and minimum control loops.
REFERENCES:
patent: 4553393 (1985-11-01), Ruoff
patent: 5624380 (1997-04-01), Takayama et al.
patent: 5763979 (1998-06-01), Mukherjee et al.
patent: 6133547 (2000-10-01), Maynard
patent: 6162171 (2000-12-01), Ng et al.
patent: 6272857 (2001-08-01), Varma
patent: 6574958 (2003-06-01), MacGregor
patent: 01069269 (1989-03-01), None
patent: 06315280 (1994-11-01), None
Otsuka, K., et al.,Shape Memory Materials, Cambridge University Press, 1998, pp. 174-178.
Hunter, I., et al., “Fast Reversible NiTi Fibers for Use in MicroRobotics,”IEEE, 1991, pp. 166-170.
Ikuta, K., et al., “Shape Memory Alloy Servo Actuator System with Electric Resistance Feedback and Application for Active Endoscope,”IEEE, 1988, pp. 427-430.
Song, G., et al., “Precision Tracking Control of Shape Memory Alloy Actuators Using Neural Networks and a Sliding-Mode Based Robust Controller,”Smart Materials and Structures, Institute of Physics Publishing, UK, v. 12, 2003, pp. 223-231.
Grant, D., et al., “Variable Structure Control of Shape Memory Alloy Actuators,”IEEE Control Systems, Jun. 1997, pp. 80-88.
Khan, M., et al., “Thermoelectric SMA Actuator: Preliminary Prototype Testing,”Proceedings of SPIE, v. 5054, 2003, pp. 147-155.
Shahin, A., et al. “Enhanced Cooling of Shape Memory Alloy Wires Using Semiconductor ‘Heat Pump’ Modules,”Journal of Intelligent Material Systems and Structures, v. 5, Jan. 1994, pp. 95-104.
Asada Harry Haruhiko
Cho Kyu-Jin
Selden Brian
Asada Harry HaruRiko
Nguyen Hoang
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