超声波传播速度到底是多少?和声音不同吗？
2017/3/27 10:08:58 点击：
Ultrasonic transmission speed is 340 m/S in the air, but it has something to do with air temperature, but the difference is very big.
Frequency of 5 m / 6 m ~ ultrasonic air speed is 340 m/S, this is right, ultrasound is a mechanical wave, has nothing to do with frequency, only related to the transmission medium.
In fact, strictly speaking, the transmission of ultrasonic wave is nonlinear, but as long as the acoustic energy is not very big, can be considered to be linear, namely sound velocity is constant.
The speed of sound probably associated with medium density and compressibility
Frequency of 5 m / 6 m ~ ultrasonic air speed is 340 m/S, this is right, ultrasound is a mechanical wave, has nothing to do with frequency, only related to the transmission medium.
In fact, strictly speaking, the transmission of ultrasonic wave is nonlinear, but as long as the acoustic energy is not very big, can be considered to be linear, namely sound velocity is constant.
The speed of sound probably associated with medium density and compressibility
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