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应用声速测距离是声学与运动学相结合的一类问题,它在声学应用中占有重要的位置.要了解声速测距,就要对声学测距问题进行分类.一般分为直接利用路程公式法、单一回声距离公式法、声速不同时差公式测距法、两个回声时差公式测距法、运动物体与回声相遇路程关系法等五种方法.直接利用路程公式法已知声音在介质中的速度和声音传播的时间,或者是声光同时产生时,看到闪光后,已知多长时间听
Application of sound velocity measurement distance is a combination of acoustics and kinematics of a class of problems, which plays an important role in acoustic applications.To understand the sound velocity ranging, it is necessary to classify the acoustic ranging problem.Generally divided into direct use of distance formula , The single echo distance formula method, the sound velocity difference time difference formula ranging method, two echo time difference formula ranging method, the moving object and the echo encounter distance relation method and so on five methods.Directly uses the distance formula method to know the speed of the sound in the medium And the time of sound transmission, or sound and light generated at the same time, see the flash, known how long to hear