1) Adjusted the LVDT driver channel for F2.
2) Calibrated the LVDT in F2. The first measurement was indicated by red .
3) Shifted down the secondary coil by 3mm.
4) Calibrated again. The curve was shifted to blue.
* The LVDT driver was driven by not +/- 18V but +/- 10V due to temporal power supply.
This calibration should be done again later.
