{"title":"利用Arduino和超声波传感器测量重力加速度","authors":"M. Shoaib, Asad Iqbal, Muhammad Arham Imran","doi":"10.4236/jst.2021.114004","DOIUrl":null,"url":null,"abstract":"In this study, a simple Arduino-based experiment was designed to examine the acceleration of the object during free fall and to calculate the value of “g” (acceleration due to gravity). Experimental data on the free fall of a plastic box through the air was gathered with the help of an ultrasonic distance sensor (HC-SR04). Readings were taken at different intervals during the fall to obtain distance time curves. Acceleration during the free fall was then determined by applying the standard kinematic equations. The shape of the dis-tance-time graphs obtained from the experimental setup was in good agree-ment with the predicted graphs and the calculated values of g lie within the expected range. After repeated experiments, value of gravitational acceleration was found to be 9.805 m/s 2 . Hardware and software prepared for the experiment are sufficient to examine movement of ordinary objects during free fall, therefore the experiment can be easily settled in a laboratory for the pur-pose of learning and teaching.","PeriodicalId":68742,"journal":{"name":"传感技术(英文)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Measurement of Acceleration Due to Gravity Using Arduino and Ultrasonic Sensor\",\"authors\":\"M. Shoaib, Asad Iqbal, Muhammad Arham Imran\",\"doi\":\"10.4236/jst.2021.114004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this study, a simple Arduino-based experiment was designed to examine the acceleration of the object during free fall and to calculate the value of “g” (acceleration due to gravity). Experimental data on the free fall of a plastic box through the air was gathered with the help of an ultrasonic distance sensor (HC-SR04). Readings were taken at different intervals during the fall to obtain distance time curves. Acceleration during the free fall was then determined by applying the standard kinematic equations. The shape of the dis-tance-time graphs obtained from the experimental setup was in good agree-ment with the predicted graphs and the calculated values of g lie within the expected range. After repeated experiments, value of gravitational acceleration was found to be 9.805 m/s 2 . Hardware and software prepared for the experiment are sufficient to examine movement of ordinary objects during free fall, therefore the experiment can be easily settled in a laboratory for the pur-pose of learning and teaching.\",\"PeriodicalId\":68742,\"journal\":{\"name\":\"传感技术(英文)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"传感技术(英文)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4236/jst.2021.114004\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"传感技术(英文)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4236/jst.2021.114004","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
在本研究中,设计了一个简单的基于arduino的实验来检查物体在自由落体过程中的加速度,并计算“g”的值(重力加速度)。在超声波距离传感器(HC-SR04)的帮助下,收集了塑料盒在空气中自由落体的实验数据。在下降过程中以不同的间隔进行读数,以获得距离时间曲线。然后通过应用标准运动学方程确定自由落体时的加速度。实验装置得到的距离-时间图的形状与预测图吻合较好,g的计算值在预期范围内。经过反复实验,得出重力加速度值为9.805 m/s 2。为实验准备的硬件和软件足以检测普通物体在自由落体过程中的运动,因此实验可以很容易地在实验室中进行学习和教学。
Measurement of Acceleration Due to Gravity Using Arduino and Ultrasonic Sensor
In this study, a simple Arduino-based experiment was designed to examine the acceleration of the object during free fall and to calculate the value of “g” (acceleration due to gravity). Experimental data on the free fall of a plastic box through the air was gathered with the help of an ultrasonic distance sensor (HC-SR04). Readings were taken at different intervals during the fall to obtain distance time curves. Acceleration during the free fall was then determined by applying the standard kinematic equations. The shape of the dis-tance-time graphs obtained from the experimental setup was in good agree-ment with the predicted graphs and the calculated values of g lie within the expected range. After repeated experiments, value of gravitational acceleration was found to be 9.805 m/s 2 . Hardware and software prepared for the experiment are sufficient to examine movement of ordinary objects during free fall, therefore the experiment can be easily settled in a laboratory for the pur-pose of learning and teaching.