利用智能手机测量声波的波长  

Measurement of the Wavelength of Sound Waves with a Smart Phone

作　　者：陈爱云[1] 熊彩云[1] 丁益民[1] 张泽群[1] 陈利凯 

机构地区：[1]湖北大学,湖北武汉430062

出　　处：《大学物理实验》2017年第4期67-69,共3页Physical Experiment of College

基　　金：物理学国家级特色专业建设项目(TS10985);湖北省大学生创新训练计划项目(201610512060)

摘　　要：根据驻波的特性,将智能手机及APP软件中的"信号发生器"和"波形测试仪"作为主要实验仪器,通过测量驻波相邻波节的间距,用Origin软件处理实验数据,进而计算出声波的波长,实验结果表明波长测量值与理论值相符,进一步证明了实验方案的可行性。According to the characteristics of the standing wave ,using the “signal generator” and “ waveform tester” in the smart phone as the main experimental instrument,we calculated the wavelength of sound waves by measuring the distance of the adjacent nodes of the standing wave , then used the Origin software processed the experimental data. Final ly,the experimental results show that wavelength measurement value is consistent with the theoretical value,further the experiment proved the feasibility of this scheme.

关 键 词：波长的测定 智能手机 驻波法 波形测试仪 ORIGIN软件 

分 类 号：O321[理学—一般力学与力学基础]