how to edit the dynamic data

[thinnker]

Hi

In my project i am using PCI 6221 card.

I can able to get data from DAQ card, drawing graph and save to file ok.

But i need to manipulate the dynamic data before drawing the graph and saving to file.

I have sensor input, input as voltage i need to edit like         10mv =1unit. before writing to file.

how can i do that, please any ideas.

Regards,

Hari

[Davidek]

Hi Hari

You have two options. One is using a custom scale in DAQmx. You can find the custom scale settings in MAX or directly in the DAQ Assistant. The other is to do the conversion after the read in software by simply multiplying the data with a constant, which in your case would be 100.

Also note that you can convert the Dynamic data into another datatype with the "Convert from Dynamic Data" Express VI.

Hope this helps

Best Regards

David

NISW

[thinnker]

Hi David

Thank you for your suggesition.

i tried on it, but i don't know how to implement it.

i will give some details can you please help on it.

I have transducer its output is   : 0.2mv/g(at transducer end)    ->  1g = 0.2mv

after amplified the singal with gain(25) is : 0.2*25  = 5mv/g.     ->   1g = 5mv

i need to draw graph       g(y axis)    w.r.t    time(x axis).

can you please give some idea.

Regards,

Hari

[thinnker · Accepted solution]

Hi David

i got the solution, thank you.

Regards,

Hari