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Member
Aneece
Posts: 45
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Can I use DAQ card to aquire signal with third party signal conditioning?

Dear Ni Experts,

 

I am trying to display an electric signal on personal PC that converted from a photdiode through third party conditioning signal board, can I interface this signla with basic DAQ PCI-6251. the third party board already have shielded cable 68 pin.

 

Your help greatly appreciated.

 

Thanks

Member
Ali_Bailey
Posts: 29
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Re: Can I use DAQ card to aquire signal with third party signal conditioning?

Hello Aneece, Have you found the answer to your question yet? If not then can you give some specific details on the signal coming out of the third party board please? Thanks, Alistair
Best regards,
Ali Bailey
National Instruments

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Member
Aneece
Posts: 45
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Re: Can I use DAQ card to aquire signal with third party signal conditioning?

Hello Ali,

 

the signal that I would aquire it is coming from a photodector, the photodetector is being connected to an amplifier/signal conditioning. 

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crossrulz
Posts: 9,380
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Re: Can I use DAQ card to aquire signal with third party signal conditioning?

As long as the voltage to the DAQ card is within -10V to +10V, you are fine.  We use op-amps to perform signal conditioning before sending the signals to the DAQ cards.



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Member
Aneece
Posts: 45
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Re: Can I use DAQ card to aquire signal with third party signal conditioning?

Thanks crossrulz for the reply, the problem I couldn't manage to know the model of the signal conditioning board that already connected to the photodiode.