05-12-2009 02:44 AM
hello everyone,
I have acquired pressure data from anolog module of cDAQ chassis 9172. The thing is the signal doesn't start from zero and the start point is change for each running and this is acceptable for our experiment. I try to filter the data with filter express VI but seems it always begins from zero. I'm not familar with data filtering stuff but i still want to know is there any filter i can use that just filter data without from zero.
Thanks in advance.
Zhiqin
06-11-2009 07:03 AM
Hi Zhiqin
Im not sure if I understand with the term " try to filter the data with filter express VI but seems it always begins from zero." could you perhaps explain that a little bit more in detail.
/Bjorn
06-12-2009 09:34 AM
Hi Zhiqin
Are you using DIAdem or LabVIEW to do the digital filtering?
Brad Turpin
DIAdem Product Support Engineer
National Instruments