摘要
在常规实验室条件下采用信号发生器、录音笔和Cool Edit pro2.0声音处理软件,采用冲击法测量扬声器的频率特性,得出了实验所用3个扬声器频率特性的优劣顺序,使得测定扬声器频率特性的教学实验不需要在消声室中即可进行.
In the experiment,the frequency characteristic of the speaker is measured.And the means is normal in the lab,such as the signal generator,the recorder pen and the Cool Edit pro 2.0 software.Three speakers in experiment could differ from each other on the basis of the frequency characteristic.That is,they can be separated into good,moderate,poor in the aspect of frequency characteristic.To summarize,such a teaching experiment no longer need to be accomplished in the anechoic chamber.
出处
《物理实验》
北大核心
2010年第11期35-37,共3页
Physics Experimentation
基金
吉林省教育厅"十一五"科学技术研究项目(吉科教合字[2007]第451号)
关键词
频率特性
冲击响应
扬声器
frequency characteristic
shock response
speaker
