超声光栅测声速实验的量化分析  

A QUANTITATIVE STUDY ON MEASURING SOUND-SPEED BY THE(ULTRASONIC) GRATING

作　　者：张成义[1] 

机构地区：[1]南京信息工程大学,南京210044

出　　处：《大学物理实验》2006年第1期17-19,共3页Physical Experiment of College

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.

关 键 词：超声光栅 声速 光栅常数 

分 类 号：O422.1[理学—声学]