[SI-LIST] Re: DC data

Use some sort of filter circuit. The noise should be lot higher in frequency
so ideally you can choose a capacitor to gnd to work as a low pass filter or
something.

-Qazi

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Jennifer Maharani
Sent: Tuesday, June 23, 2009 9:37 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: DC data

Many thanks for the reply. Let me put it this way. Let's say I have a  
noisy data that follows a sinusoidal curve. This data is in time  
domain. How can I get a smooth sinusoidal curve?

I can also put it in a different way. My data is a sinusoidal curve  
with say 2mV peak-to-peak dynamic noise.
How can I get a smooth clean sinusoidal curve.

I hope I described it in a clear way.

Many thanks,
Jenni



On Jun 23, 2009, at 5:22 PM, Joseph.Schachner@xxxxxxxxxx wrote:

> I'm not sure I understand the question.
>
> You wrote:
> I have a set of noisy transient data where the DC level moves up and
> down.
> Is the DC moving up and down due to the transients?  I mean, does it  
> look
> like this, where the "DC" is lower after a positive transient?:
> (Embedded image moved to file: pic22704.jpg)
>
>
> Or is the DC slowly varying and has nothing to do with the transients?
>
> The answer is  different for these two possibilities.
>
> --- Joe S.
> <pic22704.jpg>
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