Patent ID: 7187143

Claim:
A mover device comprising: a fixed base; a movable base that is movable in a linear direction with respect to the fixed base; a processing base that is movable in a linear direction with respect to the movable base, the linear direction being in parallel with the linear moving direction of the movable base; a moving force generating unit that is provided between the processing base and the movable base, and forms a main moving unit in cooperation with the processing base and the movable base; a P-F measuring unit that is provided between the processing base and the fixed base, and an M-F measuring unit that is provided between the movable base and the fixed base, the moving force generating unit being designed to generate a moving force to move the processing base with respect to the movable base, and, as a result, to move the processing base with respect to the fixed base, the movable base forming an inertial force processing unit that is moved on the fixed base in the opposite direction to the moving direction of the processing base by virtue of a reaction force caused by the moving force generated from the moving force generating unit to move the processing base, and the moving force generating unit being controlled so as to control the moving velocity of the processing base with respect to the fixed base, using signals generated from the P-F measuring unit and the M-F measuring unit.