This paper described a small type drop-test shock machine with long duration of shock pulse. Thispaper analyzed its construction characters, operation principle and wave forms of shock test.

介绍一种长脉冲持续时间的小型跌落冲击台，并对其结构特点、工作原理、冲击试验的波形进行阐述与分析。

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When the head disk collision occurs, the peak acceleration of the shock pulse approximately follows a linear relationship with the inverse of the excitation duration.

当头盘系统发生碰撞时，冲击激励峰值加速度与作用时间的倒数之间具有近似线性关系。

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