12-26-2019, 08:43 PM
Yes, I would also think that measuring the time inbetween would work better. In fact, this should work right away, if you use the "magnetic ruler" experiment and enter the circumfence of the wheel as a distance. However, due to the way, phyphox tries to figure out the threshold of the magnet signal, you need to make sure that your phone is mounted such that the distance to the magnet is perfectly constant.