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Logarithmic graph

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Logarithmic graph

Hi all. 

I want to generate this type of signal but i don't have any idea how to do this. Can you help me, please?

Thanks !

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Message 1 of 6
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Re: Logarithmic graph

Do have a problem with programming or with the math to generate the data?


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Re: Logarithmic graph

i have a problem with both.

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Re: Logarithmic graph

What have you tried so far?


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Re: Logarithmic graph

Hi Claudinho,

 

i have a problem with both.

Then maybe you should start with learning the math first?

Are you looking for something like this?

Best regards,
GerdW
CLAD expired, using 2009SP1 + LV2011SP1 + LV2017 (+LV2018 sometimes) on Win7+cRIO
Kudos are welcome Smiley Wink

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Re: Logarithmic graph


@Claudinho18 wrote:

i have a problem with both.


You also have a third problem: asking questions. Smiley Very Happy Is this for continuous generation or a single-shot? What's the purpose? What's the desired datatype? Is this going to an analog output? What is the amplitude, frequency, sampling rate, and time constant?

 

A simple square wave with an exponential filter would probably do the trick. Here's a very simple example to get you started. (Probably needs a few tweaks for initial values, offset, amplitude, a, etc.))

 

ExpFilter.png

 

 

 


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