| 摘要 |
A system for positioning an object includes a base and a platform for detachably retaining the object. A first linear actuator is pivotably coupled to a first pivot axis of the platform and a first pivot axis of the base. A second and a third linear actuator are pivotably coupled to a second pivot axis of the base and the first pivot axis of the platform. A fourth linear actuator is pivotably coupled to the second pivot axis of the base and a second pivot axis of the platform. The first, second, third and fourth linear actuators being selectably adjustable in length to position the platform at a select position about a predetermined arc of travel.
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