Services

I. Definition and Principle of Electrical Resistivity Survey Electrical Resistivity Survey is a non-invasive geophysical technique based on Ohm’s Law. It generates 2D or 3D images of subsurface resistivity distribution by injecting currents into the ground and measuring potential differences.…

In today’s world, the rational development and utilization of water resources have become a global concern. As a vital source of fresh water, the exploration and positioning technology of groundwater play a crucial role in ensuring water supply and environmental…

Electrical Resistivity (EM) techniques are essential tools used in archaeology to map and analyze the subsurface, without the need for invasive digging. By measuring the resistance of the ground to the flow of electric current, archaeologists can uncover hidden features…

I. The Physics of Resistivity: Beyond Ohm’s Law Resistivity (ρ) quantifies a material’s opposition to current flow, governed by: GIM Series Breakthroughs: II. Methodological Matrix: Precision & Synergy 1. ​Core Technique Comparison Method Resolution Optimal Use Cases ​ERT Meter-scale 3D…

An echo sounder is a device used to measure the depth of water bodies and identify underwater objects by emitting sound waves and recording the echoes that return. Echo sounders are widely used in a variety of fields such as…