| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oscillator capable of oscillating a table with a large amplitude without enlarging/complicating an apparatus. Ž<P>SOLUTION: The vibration test apparatus includes first and second actuators capable of oscillating the table in the first and the second directions and first and second coupling means of coupling the table to each of the first and the second actuators so as to slide in the second and the first directions. The coupling means has a plurality of rollers each of which slidably couples the table to the actuator by a linear guide mechanism having rails and a liner block slidable along the rails and is disposed so that a cylindrical surface thereof is sandwiched between the rail and a recessed portion of the runner block; a rolling groove which is formed inside the liner block and rolls a roller in the sliding direction of the liner block; and a shelter path linking to both ends of the rolling groove in the sliding direction so as to form a closed circuit, thus circulating the plurality of rollers in the closed circuit. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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