滴水法测重力加速度的实验研究  

Experimental Study on Measuring Gravity Acceleration by Dripping Water Method

作　　者：张璐 方路线[1] 许贤武 朱倩龙 ZHANG Lu;FANG Luxian;XU Xianwu;ZHU Qianlong(College of Post and Telecommunication,Wuhan Institute Technology,Wuhan 430073,China)

机构地区：[1]武汉工程大学邮电与信息工程学院,湖北武汉430073

出　　处：《大学物理实验》2022年第5期42-46,共5页Physical Experiment of College

摘　　要：本实验以滴水法测量重力加速度为基础,用自制的自动给水装置代替水龙头,使得实验更易于操作。巧妙利用了螺旋测微器的细微调节实现了水滴滴速的细微调节。同时利用了手机连拍功能找到了第一滴水滴出的同时第二滴水滴落的最佳状态。最后利用音频处理软件goldwave分析数据,并且考虑了由于空气阻力的影响,对结果进行了修正。最终求得的重力加速度精度较高。This experiment is based on the measurement of gravity acceleration by dripping water method,and the self-made automatic water supply device is used instead of the faucet to make the experiment easier to operate.The subtle adjustment of water drop speed is realized by using the subtle adjustment of spiral micrometer.At the same time,I found the best condition of the second drop of water when the first drop of water came out by using the function of continuous shooting of the mobile phone.Finally,the data were analyzed using audio processing software Goldwave,and the results were revised to take into account the effect of air resistance.The final gravity acceleration obtained has higher accuracy.

关 键 词：滴水法 重力加速度 螺旋测微器 

分 类 号：O4-33[理学—物理]