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Comparing 2 analogue signals

rishinaidusrm

Jun 9, 2011
3
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Jun 9, 2011
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3
hi
Plz help me with a small problem.....
How do i store an analogue signal and then compare it with another signal
 

poor mystic

Apr 8, 2011
1,074
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Apr 8, 2011
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1,074
Hi Rishinaidusrm (smile)
please give more details of the signal:
What is the voltage range of the signal? What is the bandwidth of the signal?
 

daddles

Jun 10, 2011
443
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Jun 10, 2011
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443
Measure it on a modern digital oscilloscope. They also typically have the ability to store reference waveforms and you can compare the two. They also usually have the ability to define a band around the reference waveform so that you can define what's acceptable and what isn't -- this is useful for production testing.
 

poor mystic

Apr 8, 2011
1,074
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Apr 8, 2011
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1,074
Yes, that is a method, but it's not the only method and scopes are not cheap. Let's see what the signal is all about and try to find a low-cost solution without too much compromise if possible.
 
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