利用智能手机压力传感器测量重力加速度  

Measurement the Gravitational Acceleration Using the Smartphone Barometer

作　　者：易伟松 YI Weisong(College of Engineering,Huazhong Agricultural University,Wuhan 430070)

机构地区：[1]华中农业大学工学院,湖北武汉430070

出　　处：《大学物理实验》2025年第2期70-72,共3页Physical Experiment of College

基　　金：2024年湖北省大学生创新创业训练计划项目(S202410504182);2023年湖北省科技厅人才服务企业项目(2023DJC133)。

摘　　要：将内置传感器和应用程序的智能手机作为测量工具,应用于物理实验和教学领域方兴未艾。文章利用智能手机压力传感器,结合物理实验应用程序,在泳池中测量不同深度处气体压力,通过史蒂文定律(Stevin's Law),计算当地重力加速度。测量方法简便可行,测量结果精度较高。基于智能手机开展物理实验和教学,有助于激发学生学习兴趣,降低实验成本,拓展实验场地,普及物理知识,提高科学素养。Smartphones with built-in sensors and applications are being used as measurement tools in physics experiments and teaching.In this paper,the pressure sensor of a smartphone with a physical experiment application is used to measure the gas pressure at different depths in the swimming pool,and the local gravitational acceleration is calculated by Stevin's Law.which is simple and feasible and has high measurement accuracy.The experimental method is simple and feasible,and the measurement accuracy is high.Carrying out physics experiments and teaching based on smartphones can help stimulate students'interest in learning,reduce experimental costs,expand the experimental site,popularize physics knowledge,and improve scientific literacy.

关 键 词：智能手机 压力传感器 phyphox 重力加速度 

分 类 号：O436[机械工程—光学工程]