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ni-6009 current measurement help

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nzkunal

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ni 6009

Hi,

I am just trying to build a current logger using an NI-6009. Am using a 0-20A 200mA shunt. I am measuring a current of 4-10A via this shunt.

The issue is when I measure the shunt voltage to the NI-6009 logger it is quite stable but the shunt voltage measured by the logger fluctuates by 1-2mV. I was wondering what would be the best way to filter this voltage signal (similar to what the multimeter is doing!) to get a smother output.

Thanks
 

ni 6009 voltage measurement

may be you can put a capacitor to the output point which you measure.
A small value of capacitor should work I think.
 

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    nzkunal

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ni 6009 current measurement

what value of capacitance would you recommend 100nF?
 

ni 6009 beschreibung

yes you can try it
 

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