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How to overcome zero offset before integration to get velocity

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Desesperado

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Sep 29, 2007
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Hi I retrieve acceleration signal from a PCB sensor with a NI DAQCard and try to integrate numerically the signal using the vi routine that LabView has to integrate but I get a lot of clearly spurious low frequency peaks. How can I get rid off this problem? I would like to keep the concept of integrating within the program instead of using an external integrator circuit. Is there a vi that performs this job beter than the one in LabView or is there a procedure in mi own vi to overcome the integration of a zero offset drift?
Thanks
 
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