检定机械秒表,可用数字式计时仪。在启动机械秒表的同时,启动计时仪,使之开始计时;在停止机械秒表的同时,停止计时仪的计时。为了减小人为操作误差,这里介绍一个简单的人工控制方法(如图1所示),在启停机械秒表的同时,向计时仪送入时控脉冲。当启停机构移动到弹簧片时,计时仪获得地信号(表壳接地),计时仪开始计数,同时启停机构开始起作用;启停机构行程结束,机械秒表 Check the mechanical stopwatch, available digital timer. Start the mechanical stopwatch at the same time, start the timer to start timing; stop the mechanical stopwatch at the same time, stop the timer timing. In order to reduce human error, here is a simple manual control method (shown in Figure 1), start and stop the mechanical stopwatch at the same time, the timing control pulse sent to the time. When the start-stop mechanism to move to the spring, the timer signal obtained (case ground), the timer starts counting, at the same time start and stop the mechanism to work; start and stop the end of the mechanism, mechanical stopwatch