| 摘要 |
An actuator using a novel shape memory alloy which, even when there is a large difference between a transformation start temperature of the shape memory alloy and a heating start temperature, can diminish a time lag based on the temperature difference from the time when an operation start command signal is outputted until the start of movement of an actuating member, thereby causing, the actuating member to start deformation quickly and permitting a driven member to be actuated quickly. When the driven member is moved from an initial position to a reference position in operation, if the amount of movement of the driven member is larger than a normal amount of movement, an electric current larger than an electric current value calculated from the amount of movement is fed to the actuating member which is constructed of the shape memory,alloy, thereby causing the actuating member to be displaced quickly to actuate the driven member quickly.
|
