Geomatrix Earth Science Ltd
With electromagnetic methods, electromagnetic energy produced by passing an alternating current through a coil or loop, is introduced into the ground by inductive coupling; the receiver coils also detects its signal by EM induction. The technique is analogous to carrying out a conventional resistivity survey with a fixed electrode spacing and the meter reads a direct conductivity value which is the inverse of the apparent resistivity value determined from the fixed array. Common applications include:
The Geonics range of electromagnetic conductivity meters are used for many applications from near surface investigations with the EM-38 to deep subsurface investigations using the Time Domain systems EM-37, 57 and 47 (available on special request) these latter systems typically have applications in groundwater and mineral exploration, and pollution plume monitoring.
The Geonics range of conductivity instruments ( EM31,34 and 38) measure both in-phase and quad phase responses, data is stored using a data logger for later processing and interpretation.
The Geonics EM-61 and 63 are time domain instruments optimised for deep metal detecting applications such as UXO, pipe, cable and pile detecting.
The Geomatrix rental pool includes data loggers with the ability to real time track and locate using DGPS. A feature that virtually eliminates the need to survey and peg a site prior to data acquisition, ask us for details or follow the links from this page
page updated 15 January 2008
