The transducer sends a sound wave signal and determines the distance by measuring the time between the transmission of the sound wave and when the sound wave is reflected off an object.
该传感器发出的声波信号，并决定通过测量之间的声波传输和时间的距离时，声波反射的对象。
It produces an inverted sound wave to cancel out unwanted noise in the headphone signal.
随后它便产生逆向声波从而消除耳机信号中不需要的噪声。
Analog signals vary continuously; an example of an analog signal is a sound wave.
模拟信号是连续变化的；声波就是模拟信号的一个例子。
应用推荐