Bartington Helmholtz Coil, Установка и калибровка, Страница: 17 / 19

HELMHOLTZ COIL INSTALLATION AND CALIBRATION
Ensure the sensor is in Position 0 (see Figure
7 ). Select the Y axis and record the X and Z
errors due to Y (Xy, Zy). Rotate the sensor
along the Y axis to end up in position 2 (see
Figure 12 ) . The errors obtained will be, Xy’
and Zy’. The target value for Xy and Zy will be
calculated as (Xy’
- Xy)/2 and (Zy’ -Zy)/2. Adjust
the potentiometers X->Y and Z->Y ( Figure 13 ).
Figure 11: X and Z errors due to Y
Figure 12: Position 2 - Y Axis rotation