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filter in driver excel

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filter in driver excel

Postby student » Wed Jan 28, 2004 1:32 pm

Hello
I use the macro excel for adc 42 and then i calculate the FFT.
My problem is that i would like to filter before the acquisition.
We can change TIME and number of points (and then frequency)
Is it possible to activate a filter (with cut f/2) ????
Thanks
Pierre
student
 

Postby markspencer » Fri Jan 30, 2004 8:35 am

Hi,

When using the ADC-42 functions there is not a funtion that will allow filtering. The adc-42 does not have and high or low pass filters, any filtering would have to be done by you in software (excel macro).

Best regards,
Regards,

Mark Spencer
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excel filter

Postby student » Thu Aug 05, 2004 6:30 am

i think you havve not understood.
it 's a anti alias filter which is needded.
This filter must be BEFORE the acquisition.
Thanks for your answer
Pierre
student
 

Postby markspencer » Thu Aug 05, 2004 8:32 am

Hi,

I am sorry to hear that I did not give you a correct answer to your first post.

The ADC-42 does not have any Low or High Pass filtering on board, to achive this you would have to make your own, and put it between the ADC-42 and your signal.

Best regards,
Regards,

Mark Spencer
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