| 摘要 |
<p>An apparatus (100) for two degree of freedom positioning a moveable structure (105) relative to a support structure (110) is provided. The apparatus includes a moveable structure, a support structure, a compliant support (113) disposed between the moveable structure and the support structure. The compliant support biases the moveable structure away from the support structure. In addition, three shape memory alloy actuators (120) are provided between the structures and symmetrically arranged about the compliant support. The shape memory alloy actuators are selectively activated to provide two degrees of freedom of movement for the moveable structure relative to the support structure.</p> |
