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NI 4472 Series input signal amplification

Hello,

 

I use a NIX 4472 acquisition card to measure sound with a microphone.

 

The output signals of my microphone have an amplitude between 1e-5 and 1 volt.

 

Thus, since the amplitude range of the NIX 4472 cars is +/- 10 V I do not make full use of the 110 dB dynamic range of the card.

 

Is there a way to tune the card to amplify the input signals to a maximum amplitude of 10 Volt?

 

Or do I have to make use of external amplifiers? micrphone->amplifier->NIX 4472

 

If I have to use an external amplifier? What amplifier should I use (specs) in order to make full use of the specs of the NIX 4472 card (dynamic range etc).

 

Thank you for answering the question.

 

Best Regards,

Jeroen

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Dear Jeroen,

 

thank you so much for your post on our forum. There are Dynamic Signal Analyzers available with different ranges, unfortunately this one hasn't a selectable range. If you want to macht the range you will have to arrange this exernally.

 

Best regards,

Martijn S
Applications Engineer
NI Netherlands
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