Селективный металлодетектор «Сигнум MFT» 7272М. Руководство по эксплуатации.
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Fig. 24
The example in Fig. 25 shows a hodograph for two nearby objects. Dimensions of the
Hodograph loops will depend on the ratio of the size of these objects and the distance
between them.
Fig. 25
SEARCHING FOR METAL OBJECTS WITH
LARGE EDDY CURRENT LOOPS.
These types of objects include, for example, large copper/silver coins, and other
large planar objects of non-ferrous metals with a diameter greater than 40 mm.
Due to the particular interaction between the search coil and these types of targets certain
difficulties arise.
This is due to the very narrow difference between the vector angle of these targets and
those of the ground signal.
Fig. 26
