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Geotech develops & manufactures full-series geophysical exploration instruments for mineral, environmental and engineering geological survey industries.

High-Density ERT: Centralized vs Distributed

TIPS:High-density electrical method and electrical resistivity tomography are reshaping modern geophysical surveys. This guide compares centralized and distributed electrical resistivity tomography systems. You will learn which high-density electrical method fits your project. We cover technical architecture, field scenarios, and cost…

Geotech develops & manufactures full-series geophysical exploration instruments for mineral, environmental and engineering geological survey industries.

A Comprehensive Guide to Electrical Resistivity Tomography (ERT)

TIPS:Electrical Resistivity Tomography (ERT) is a versatile geophysical method that maps subsurface resistivity through 2D cross-sections and 3D volumes. This comprehensive guide covers ERT fundamentals—from Ohm’s Law and four-electrode arrays to environmental applications and data interpretation. Learn how Geotechcn ERT…

Geotech develops & manufactures full-series geophysical exploration instruments for mineral, environmental and engineering geological survey industries.

Principles and Simulation Experiments of Potential Measurement Method

TIPS:Electrical resistivity method and induced polarization method form the foundation of geophysical electrical exploration. This guide explains how electrical resistivity method detects subsurface structures through current injection. You will learn induced polarization method principles for mineral discrimination. We compare electrode…

Geotech develops & manufactures full-series geophysical exploration instruments for mineral, environmental and engineering geological survey industries.

Basic principles and applications of geophysical exploration

TIPS:The high-density electrical resistivity method is an advanced geophysical technique that creates detailed 2D and 3D images of subsurface electrical properties. Also called electrical resistivity tomography (ERT), this method deploys dozens to hundreds of electrodes in automated arrays. It measures…