Fig. 1 Glass probed without active filling
The chart illustrates the disturbance of the energy field of one-pole connected
scanner by electrically and magnetically inactive material (a sealed glass tube).
Fig. 2 A glass probe - short filling
Almost round energy field of the short filling of the probe creates a typical
double wave with peaks in contacts points with the ball energy surface.
Fig. 3 A glass probe - long filling
An energy field in a space of a slightly deformed oval resulting in a sharper
rising curve with a flat dip.