Tomography, research and monitoring applications require highly accurate measuring instruments. Our RESECS resistivity meter is ideal for resistivity measurements on land from the surface in boreholes or marine resistivity surveys. Its robust design allows for flexible operation under many conditions and the high data acquisition rate delivers fast and reliable results.
RESECS is a PC controlled DC resistivity meter system. It can be used for underground resistivity measurements, locating ground water resources, soil and subsoil investigation and cavity exploration. It can be used in a wide range of environments, such as mining, due to its stand-alone and ruggedised design. The resistivity meter has an integrated computer, is portable and water proof. It covers any geometric configuration from Wenner, Schlumberger and Dipole-Dipole to user-defined configurations. This contributes to its flexibility. RESECS is suited for a wide range of geological applications, one example of that being electrical resistivity tomography, (ERT), for mineral exploration.
Applications of Resistivity Tomography for Mineral Exploration
ERT is a popular geophysical exploration method, low-cost and easy to use method for mineral exploration; e.g. ore deposits can be identified. A high-accuracy resistivity profile or map is being generated from the data acquired by the resistivity meter. The ore bodies can then be located and potentially extracted. DMT's RESECS is suitable for mineral exploration in near surface region, up to a certain depth depending on the geological conditions. It helps you plan your exploration strategy and choose the most promising mineral deposits.
Other Applications for Geophysical Resistivity Measurements
RESECS can also be used for groundwater exploration. Measuring resistivity can lead to groundwater resources. Additionally, it can be used for geophysical surveys to identify suitable or unsuitable subsoil for foundation engineering. Resistivity measurements are used to determine the safety requirements for construction projects.
Features of DMT's Resistivity Meter
RESECS is able to calculate 10 different measurements:
- geometry factor
- potential difference
- measuring current
- self potential (potential offset)
- apparent resistivity
- spectral impendance
- phase shift
- standard deviation of potential differences
- grounding impedance
A single seven-core cable can connect up to 960 addressable electrodes. Any pair of these electrodes may be selected as a current injector. Up to eight other pairs of electrodes can be used as potential electrodes for simultaneous geological measurements.
RESECS also automatically selects all programmed electrode configurations. This means that it optimizes input current and preamplification, corrects self-potential, displays online pseudo sections and timing diagrams of input and output voltage. It also yields DC resistivity as well as IP values and stores the complete timing diagrams in its internal data storage. RESECS can also be used for continuous monitoring applications.