Labview Integration

[bhyy]

The current project has a requirement to use the velocity curve to integrate the time axis to calculate the displacement. I used the integral function inherent in Labview to do the test, and the result obtained was not the theoretical value. For example, the integral of a single periodic sine wave with a amplitude of 1 using 1D Numeric Integration.vi was 0.6366, which is not a theoretical value of 2. What is the reason? What exactly should I do to compute the displacement by integrating the velocity curve with respect to the time axis? Thank you very much！

[altenbach]

Your descriptions is insufficient. What is dt? What are the units? What integration method?

(0.6366 is approximately 2/pi, something to think about. My guess is that dt is wrong)

It would be significantly easier to help if you could attach a simple VI to show what you are doing? Please do so! Thanks!