I’m not sure what the camshaft measuring software uses, but this is an issue when measuring camshaft data. You really need a linear encoder and measurements of multiple points / degree to get anything super useful for Velocity / Acceleration / Jerk plots. Hand measured plots at one degree increments is useless.dans79 wrote: ↑26 Oct 2022, 22:49I just worked on a project where I used a Savitzky–Golay filter to get smoothed velocity and acceleration data from positional data with some noise in it. It worked exceptionally well!johnny comelately wrote: ↑26 Oct 2022, 22:23It is a far more accurate a tool than many would believe if you can get accurate data.Hoffman900 wrote: ↑26 Oct 2022, 21:47I have said it here multiple times, but taking the derivative of velocity to get acceleration would be more insightful when comparing PU’s and deployment.
(having a little whinge) I can remember using and suggesting this in earlier times and got criticised by a few knobs but it was over the question "What is the power of the ICE" and nobody knew. At least it gave an indication
A quick and dirty way use to use a polynomial smoothing function in excel. It helps get a sense of the shape of the curve, but useless in terms of absolute values.