[Marc, Shalika]

Following the speed improvement of the LC voltage control we implemented a sine modulation of the voltage.

However, we found that the resulting retardance is different if the voltage is increasing or decreasing.

We decreased a lot both the sine freq and sampling freq and could resolve this issue.

This seems related to the LC different switching frequency when applying increasing or decreasing voltage with decreasing voltage being faster.

To mitigate this effect, we also implemented a decreasing sawtooth function and plan to mainly use this one for our future calibration and measurements.