作　　者： ; ; ;

机构地区： 广州大学物理与电子工程学院

出　　处： 《物理实验》 2013年第2期17-19,共3页

摘　　要： 针对传统真空不传声实验装置的缺陷在于底座传声,提出悬浮发声体的设想,并通过磁悬浮来实现.文章介绍了磁悬浮的原理和实验装置,并做了实际测试.数据分析显示,演示效果有了显著改善. The traditional experimental apparatus,which was used to demonstrate that sound is not transmitted by a vacuum,was improved by isolating the source by magnetic levitation to avoid the leaking of sound through the base.We first introduced the principle and structure of the experimental apparatus.Then,we carried out tests and obtained and analyzed many data about the sound intensity outside the device.The results showed that the improvement was significant.

关 键 词： 磁悬浮 真空 声音传播

领　　域： [文化科学]