filet noise

[nazreen]

hi guys,

actually i wanna read the measurement from dc shunt. but the problem is the output is too small...less than 60mV..so, since i'm using pci 6220 and the shunt is connected directly to the CB 68 LPR. So, any suggestion, which filter can i used.

[chrisger]

hi there,

be sure to adjust the "minimum value" and "maximum value" of the DAQmx Create Channel (AI).vi. the PCI-6220 has a resolution of 16Bits, so you should be able to read the signal with a resolution << 1mV.

you can use a median filter or a lowpass digital filter. search for filters in your LabVIEW help files. you can also post some code or data so we can have a look.