摘要
介绍了在共振干涉声速测定中 ,随接收探头和发射探头的距离增加 ,声强 (能流密度 )减小的规律和机制 。
The paper introduced the cause and mechanism of derogation of intensity of sound while the interval between emitting probe head and pick up probe head increased in measuring sound velocity by resonance interference method. It presented that the main reason of intensity of sound cutdown was the piston oscillation of emitting probe head.
出处
《物理实验》
北大核心
2001年第9期36-37,共2页
Physics Experimentation
