|
The Lowedel-Gerät mine detector (fig. 162) is a modification of the
induction bridge type. It operation on the principle of self-inductance
rather than mutual inductance. The search head is a flat plate,
elongate-oval in shape. A special search head is also issued with the set.
It is cicular and ring-shaped with inner portions removed to decrease the
weight. A triangular bracket at the rear of each search head provides for
attachment of the extension handle. Instead of a hinge joint at this
bracket, two holes are provided to give a choice of angles for the
extension handle is in three pieces. In addition to the headset, a visual
balance indicator housed on the middle extension piece also indicates the
presence of metal. The control box is located at the upper end of the
extension handle. At the upper end of the control box there is a
rubber-covered handle, projecting up at right angels to the extension
handle. The detector unit is housed in a metal pack case, which is carried
on the back of the operator in a canvas carrying sack when the detector is
in operation. The Lowedel-Gerät mine detector has only average
sensitivity and is difficult to adjust.
|
