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电火花计时器作为电磁打点计时器的换代产品出现在中学实验教学中,它配合轨道小车、斜面小车等实验仪器,可以做10多种动力学的定量实验,能把物体运动情况定时地记录在纸带上。国家教委于1993年修
As a new generation of electromagnetic timer, EDM timer appears in middle school experiment teaching. It cooperates with experimental instruments such as track car and bevel car, and can do more than 10 kinds of dynamic quantitative experiments. It can record the movement of objects regularly Paper tape. National Education Commission in 1993