caractéristique courant-tension

[arhemza]

hi, 

could you tell me how can i determine exactly the sampling period of my digital data.

thank you.

[altenbach]

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arhemza wrote:

could you tell me how can i determine exactly the sampling period of my digital data.

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Your question seems unrelated to the existing discussion of this thread.

You also need to be much more specific:

• What is the datatype of your "digital data" (array, waveform, dynamic, etc.)?
• Where did the data come from?

[arhemza]

I made an acquisition of data for the current and the voltage,

so I have an array of data and the current vs voltage curve, I would like to draw the derivative, so I need to sample the data.

[altenbach]

The sampling period is entirely determined by the acquisition parameters.

[arhemza]

ok i have this parameter;

the acquisition was made with this parameter ( 15 bytes per packet, 115200 baude rate ).

[altenbach]

These are the serial communication parameters. They have nothing to do with the sample timing (except for giving an upper limit).

[arhemza]

my acquisition was done with the interface of arduino and labveiw, so can you tell me what are the parameters you talking about, 

[altenbach]

Only you know how often you sample the input. If this is not clear to you, maybe you should start with a simpler problem.

[arhemza]

I made the  acquisition for 156 points, and the time between two point is 100ms.

[arhemza]

anyone can help me to samling the signal.