Cattledog you got my point. I want to see how the velocity changes from an initial position an initial time. Every 12,5 milliseconds I want to see the value of the angular velocity. To be more clear I give you an example:
At 12,5 milliseconds -> 25 rad/s
At 62,5 milliseconds -> 65 rad/s
My final goal is to have a graph in which on x-axis I have got time value while on y-axis angular velocities. To do it I use a software from Parallax but my problem now is to deal with the angular velocity with a frequency of 80 Hz