reache their limits with a etection range of approximately 1
meter. Enormously large amounts of metal woul be necessary to
increase their etection range over these limits. The search coil of
the pulse in uction etectors coul be increase to almost any
size, so that a large long ranging magnetic fiel woul be built up.
The SDP series works using a magnetic fiel cause by short
pulses. The large search coil an the low frequency applie make
it capable of penetrating eep into the groun .
An important isa vantage of the other pulse in uction etectors
is that they are not capable of i entifying whether the target is a
ferrous or non-ferrous metal object. It is known that some of the
latest pulse in uction etectors on the market are a vertise to
have this capability. But for the reliable target i entification these
etectors loose about 40% of their etection epth, an often
register the eep nonferrous targets as being ferrous, which is
absolutely unacceptable for the serious treasure hunter. The
systems operation is strongly influence by the size of the metal
target an it’s aging (oxi ation) in the groun . With the SDP
series Automatic Full Discriminator we have trie to avoi all
these isa vantages of the pulse in uction systems for treasure
hunting.
The DISCRIMINATOR with the 1m x 1m coil iscriminates
(currently only square size coils that iscriminates) the unwante
ferrous objects no matter their size an aging in the groun in
almost all cases. When operate in its iscrimination mo e the
etector oesn’t loose its etection epth an oes not make the
mistake to count a non-ferrous target as an unwante ferrous
metal. This unit is very operative an gives a great choice of non-
iscriminating an iscriminating mo es of operation.
The SDP pulse in uction principle offers many other a vantages:
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