New developments in the field of equipment for MTZ and AMTZ methods

Abstract

There are two parallel approaches clearly appeared in elaboration of the fifth generation of multifunctional electroprospecting equipment. Both approaches have multiple channels. The first one (which is more closely related to the previous generations models) has, as the main features, a central (recording, controlling and processing) unit connected by cables to 20-24 one- or twochannel boxes, each with preamplifier, ADC and small memory. Only two channels are used for horizontal magnetic components, all other channels measure horizontal electric components. The second approach (dominating now at the world equipment market) features an unlimited number of independent (without cables) 5-, 3- and 2-channels boxes, all synchronized by GPS. Most recently (in 2005) «Phoenix Geophysics Ltd» released a telemetric multifunctional system under the trade name SSMT.net, which incorporates advantages from both mentioned approaches. Since 2003, a natural field electroprospecting technique, measuring only three magnetic components, has grown rapidly for various types of useful minerals.