Firstly, Thanks to crelf and torekp,
My labVIEW 8.0 is the professional edition.
Now, I know how to integrate the acceleration. Thanks a lot to you all.
But I had the new question about the acceleration signal offset and the digital filter configuration.
I need to design a digital filter (band-pass) to remove DC offset and upper useless frequencies. I got some suggestion that I need to get the minimum and maximum acceleration, and use them to determine upper and lower cut-off frequencies. But I don't know how to get them? And after I get the minimum and maximum acceleration, how to determine upper and lower cut-off frequencies of the band-pass filter. Normally, which type of the digital filter that I should choose to offset the acceleration signal and removes the high frequency noise?
Normally, how do you deal with the DC offset of the acceleration signal? And how do you design a digital filter?
And for the acceleration signal, in the vertical direction, there is a 1g gravity always present, how do I deal with this problem?
Has anybody the experiences about these?
This is the first time that I use the NI labVIEW and process the acceleration signal of tri-axis accelerometer.
I hope I could get help from you. Thank you very much in advance!
Regards,