摘要
为了对雪崩现象进行实验演示,利用示波器、信号放大器、扬声器和Tracker软件,搭建了声波诱导崩塌的实验装置.利用该装置测量并计算了在不同频率声波诱导下,5种石英砂堆的静止角、稳定角和崩塌角,获得了其崩塌峰值频率与颗粒粒径的关系.
An experimental device for acoustic-induced avalanche was constructed by using an oscilloscope,a signal amplifier,a loudspeaker and Tracker software.The device was used to measure and calculate the repose angle,collapse angle and stability angle of five kinds of quartz sand piles induced by different frequencies of acoustic waves,as well the relationship between the collapse peak frequency and particle size was obtained.
作者
迟逢逢
张家晨
李斌
韦先涛
CHI Feng-feng;ZHANG Jia-chen;LI Bin;WEI Xian-tao(School of Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Physical Experiments Teaching Centre,University of Science andTechnology of China,Hefei 230026,China)
出处
《物理实验》
2022年第7期18-21,共4页
Physics Experimentation
基金
江苏省高等教育学会专项课题(No.2020JDKT035)。
