Electronics > Beginners
Rigol realtime view of voltage changes
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sasadmunir:
So I have recently bought RIGOL DS1102 oscilloscope.  It gives a view of maximum 10 seconds at the widest horizontal setting. However at this resolution it takes approximately a minute just to plot the samples captured.

I am playing around with piezo buzzer these days and was curious to see how voltage fluctuates as you touch it. Does anybody  know a way in which the scope would reduce the sampling rate significantly where one might see in real time how the voltage is fluctuating? As in those ECG machines where a meteor type line is running constantly and it goes up and down as the heart beats.

Thanks
metrologist:
turn the horizontal sweep time/scale knob to the right. that will make the rabbit run faster
CustomEngineerer:
roll mode under the horizontal menu.
metrologist:
ekg is usually as such, I think with about 200ms/div



I think roll mode is similar to this, but trace is full screen

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