CMD-DUO electromagnetic conductivity meter completes our family of advanced digital conductivity meters with the instrument for deep surveys. Easy operated set with variable dipole distance allows multidepth field survey with results suitable both for apparent conductivity and model sections (inversion by IX1D).
Used electromagnetic measuring method covers wide range of ground conductivities independently on their upper layer and thus can be successfully used on sandy, stony, icy and asphalt surface. Calibrated conductivity values correspond very well with DC resistivity and can serve for fast distinguishing of geological materials and structures – bedrock, weathered zones, cavities, fissures, gravel, sand, clay and other sediments.
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Generated wave types: SV
Signal frequencies: Up to 500 Hz (depending on geology and borehole distance)
Operational depth: Up to 100 m
Source length: 1015 mm
Source weight: 6 kg
Cable weight per metre: 377 g
Borehole diameter: 75-100 mm (or larger if spacers are used)
Clamping system: Infatable bladder
Depth indicator: Cable marking every 2 m
Connector: To impulse generator IPG800 or IPG5000
Storage: On drum
Switch box: Switch between two vertical shot directions