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我家的石英钟新换电池不久,就出现了秒针停在6至9点间的某点而不断抖动的现象。测电池电压在1.35伏以上。原以为是内部齿轮打滑所致,打开后盖检查却未见异常。经分析认为可能是秒针重心没有落在转轴处所致。于是,摘下秒针在转轴0点悬挂实验(如图示为秒针示意图),发
Not long after my family replaced the quartz clock, there was a constant dithering of the second hand stopping at a point between 6 and 9 o’clock. Measure the battery voltage above 1.35 volts. The original thought was caused by internal gear slippage, open the back cover inspection but no exception. After analysis that may not be the second hand center of gravity due to the shaft. So, take off the second hand in the shaft hanging experiment 0 (as shown in the second hand diagram), hair