Minelab F1A4 Especificações descarregar pdf (Página 11)

10 F1A4 Operator Instructor Notes and Syllabus

Minelab Countermine Division Safety through Excellence

Twenty four

Multi Period Sensing.

The F1A4 uses three channels in its electronics comprising two target channels and one

ground channel. MPS successfully and easily detects the presence of mineralized

ground and ignores its effects. MPS can be a difficult concept to explain. It is

recommended that instructors make best use of PowerPoint presentation.

MPS produces a series of wide and narrow pulses that are transmitted into the ground

from the Monoloop. Note: it is a physics law that the electromagnetic radiation will also

transmit upwards in the opposite direction. That is why there can be no metal in the

Lower Shaft assembly.

Twenty five

After each pulse, both wide and narrow, a piece of metal in the ground will be “excited”

and will return its own radiation as a decay pattern as shown.

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