A simple apparatus consisting of a plastic syringe coupled with a U-tube has been constructed. This setup is filled with water to trap air in one arm of the U-tube. A change in the volume of the enclosed air causes a change in its pressure that is indicated by the difference in the water levels. Boyle’s law is shown by a linear relation between the pressure and the invers of the volume observed in the experimental result. Using the best linear fit we obtain the atmospheric pressure to be (108.7 ± 4.5) kPa.

中文翻译：

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用注射器和U型管进行实验以确定大气压

已经构造了一种简单的设备，该设备由塑料注射器和U型管组成。此设置充满水以将空气捕获在U型管的一个臂中。封闭空气的体积变化会导致其压力变化，这种变化由水位的差异表示。博伊耳定律由压力与实验结果中所观察到的体积的倒数之间的线性关系表示。使用最佳线性拟合，我们得出的大气压为（108.7±4.5）kPa。