| 摘要 |
PURPOSE: A submarine is provided to allow for a long moving route and reduce the size of a drive device using a piezo actuator by holding the piezo actuator in the accurate position. CONSTITUTION: A submarine comprises one or more drive devices for moving a pressure hull and components. The drive device comprises one or more piezo actuators(12,14) which are arranged in the component to contact or not to contact with the component(8) to be moved. |
