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Sampling rate problem

Hi there, I am working in data acquisition of temperature sensor NiCrNi and I save it into csv file. I have problem in sampling rate. I have test with the different frequency range ( from 1-10Khz) and The csv file results that not supposed to be ( I check it with the time count. For example if the sampling rate is 100, so the time between each sample supposed to be 1s/100= 10ms. But thats not happen when I open the csv file). I think I missed something important here. 

 

I also attach my block diagram.

I hope you guys understand what I meant and you can help me with it.  

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What device are you using for data acquisition?

Randall Pursley
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I am using Data translation DT9816..

 

Citras

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What does your csv file show?

 

 

 

Randall Pursley
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