利用静态空气柱测量重力加速度  

New method for measuring gravity acceleration using a static air column

作　　者：徐捷 张姿 莫凤秀 金三梅[1] 汪海 XU Jie;ZHANG Zi;MO Feng-xiu;JIN San-mei;WANG Hai(School of Mathematics and Physics,China University of Geosciences(Wuhan),Wuhan 430074,China)

机构地区：[1]中国地质大学(武汉)数学与物理学院,湖北武汉430074

出　　处：《物理实验》2021年第9期52-54,共3页Physics Experimentation

摘　　要：在一端封闭的细管中装入一定的液体,形成一段封闭的空气柱.测量细管在正立和倒置状态下稳定共存的液体柱和空气柱的高度,计算得出重力加速度.对实验进行理论推导和实验验证,重力加速度的测量值与标准值进行了比较,测量结果符合学生实验要求.A certain amount of liquid was filled in a closed tubule to form a closed air column.The height of the liquid column and the air column which coexisted stably in the upright and inverted state of the tubele were measured,and the gravity acceleration was calculated.Through theoretical derivation and experimental verification,the measured value of gravity acceleration was compared with the standard value,and the measurement result met the requirements of the student experiment.

关 键 词：重力加速度 压强差 静态测量 空气柱 

分 类 号：O31[理学—一般力学与力学基础] O4-33[理学—力学]