物理实验
物理實驗
물리실험
PHYSICS EXPERIMENTATION
2015年
2期
23-24
,共2页
声音%真空%磁悬浮
聲音%真空%磁懸浮
성음%진공%자현부
sound%vacuum%magnetic suspension
利用密闭注射器得到近似真空的环境,设计了简易真空不能传声实验装置。该装置利用同极磁铁相互排斥原理,使发声体悬浮,并将接收声音的装置放在发声系统外部,避免了容器本身传递声音。
利用密閉註射器得到近似真空的環境,設計瞭簡易真空不能傳聲實驗裝置。該裝置利用同極磁鐵相互排斥原理,使髮聲體懸浮,併將接收聲音的裝置放在髮聲繫統外部,避免瞭容器本身傳遞聲音。
이용밀폐주사기득도근사진공적배경,설계료간역진공불능전성실험장치。해장치이용동겁자철상호배척원리,사발성체현부,병장접수성음적장치방재발성계통외부,피면료용기본신전체성음。
A simple vacuum device was designed using a sealed syringe to obtain an approximate vacuum environment .Basing on the principle that like magnets poles repel each other , the sound source was suspended ,and the receiver was put outside .This design avoided the sound transmission through the container .