为什么在我的Labview波形中脉冲的脉冲宽度和频率不正确? [英] Why are the pulse width and frequency of pulse not correct in my labview waveform?

问题描述

在下图中，您看到我将脉冲频率设置为50 Hz，脉冲宽度设置为2ms. 占空比可计算为10％，并被馈送到信号模拟器中.

In the following image you see I set the pulse frequency to 50 Hz and pulse width to 2ms. The duty cycle computes to 10%, which is fed into a signal simulator.

当我执行labview程序时，得到的波形如下所示:

When I execute the labview program the waveform I get is shown below:

该波形显然是不正确的，因为脉冲宽度和脉冲频率似乎都约为10ms.

This waveform is clearly not correct because pulse width and pulse frequency both appear to be about 10ms.

以下是背面板的接线图.

Following is the back panel wiring diagram.

我的采样率设置为200000Hz.

My sampling rate is set to 200000Hz.

为什么我的脉搏未正确显示?

Why are my pulses not showing up correctly?

推荐答案

您尚未将占空比添加到函数生成器中.因此它将使用默认的占空比(50％).

You have not added the duty cycle to the function generator. So it will use the default duty cycle (50 %).

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