For example, if you scroll the wheel down, the pulse train from the two adjacent sensors will look like this, whereas when you scroll the wheel up, it will look like this.
例如， 如果向下滚动轮子，来自两个相邻传感器的脉冲序列将如下所示，而当您向上滚动轮子时，它将如下所示。
Pulse train
原声例句
科技智慧坊
科技智慧坊
Within each hundredth of a second, the sensors see 12 pulses of light and using the generated pulse train, the processor calculates that the wheel is spinning at 25 rotations a second and then sends this information to the computer.
在每百分之一秒内， 传感器会看到 12 个光脉冲， 利用生成的脉冲序列，处理器计算出车轮以每秒 25 转的速度旋转， 然后将该信息发送到计算机。
英语百科
Pulse wave
（重定向自Pulse train）
A pulse wave or pulse train is a kind of non-sinusoidal waveform that is similar to a square wave, but does not have the symmetrical shape associated with a perfect square wave. It is a term common to synthesizer programming, and is a typical waveform available on many synthesizers. The exact shape of the wave is determined by the duty cycle of the oscillator. In many synthesizers, the duty cycle can be modulated (sometimes called pulse-width modulation) for a more dynamic timbre. The pulse wave is also known as the rectangular wave, the periodic version of the rectangular function.
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