VIBRATION APPLICATION DEVICE

The present invention relates to an oscillating device (1) having a vibrating table (400) for vibration testing, an actuator (100, 200, 300) for oscillating in a first direction,a slide coupling mechanism (160,260,360) attached to a side of the vibrating table (400) between the actuator (100, 200, 300) and the vibrating table (400) and configured for slidable movement, relative to the actuator (100, 200, 300), in a second direction orthogonal to the first direction, and a counter balancer (610, 620, 630) comprising a weight (612) fastened to a side of the vibrating table (400) at an opposing side to the slide coupling mechanism (160, 260, 360), the counter balancer (610, 620, 630) configured to compensate a first imbalance of an oscillated portion including at least the vibrating table (400), the first imbalance being caused by attaching the slide coupling mechanism (160, 260, 360) to the vibrating table (400). The weight (612) is divided into a plurality of pieces.