摘要
对超声光栅测声速实验中声光光栅的光栅常数取值问题进行了分析,同时说明了该实验中声速测量结果与光栅常数取值无关。
The value of grating constant is discussed in this paper. It corrects the misunderstanding for the grating constant of ultrasonic grating. At the same time,it is explained that the formula of sound speed isn＇t related to the value of the ultrasonic grating constant.
出处
《大学物理实验》
2006年第1期17-19,共3页
Physical Experiment of College
关键词
超声光栅
声速
光栅常数
ultrasonic grating
sound speed
grating constant
