Bifilar ballistic pendulum and accelerometer

[Jens Noriʇzsɔɥ]

I am sorry for the misunderstanding: I meant to refer just to the algorithm for the autocorrelation graph (rather than autocorrelation itself) utilized to the top graph in your debug tab. With ten periods, the accuracy should be sufficiently high.

(nevertheless agreeing on regression/fit being an enhancement – unfortunately like many other things…)