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吸盘测量大气压原理

更新时间: 2021-01-14 04:21:44     

1、P=F/s,测出拉动吸盘的拉力,和吸盘大概的面积,估算出大气压,注意,这里吸盘内气压为0,根据二力平衡,拉动吸盘的拉力=大气压压力。

2、当吸盘与吸附物之间的空气被排出后,由于吸盘里面是真空的,压力为0,与吸盘外面的大气压不再平衡,所以吸盘就受到大气的压力,其大小为一个大气压与吸盘表面积的乘积。

关键词: 吸盘 测量 大气压 原理

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