Knowledge base

Introduction In the realm of geophysical exploration, understanding the subsurface is crucial for various applications, from mineral exploration and groundwater investigation to environmental monitoring and engineering surveys. One of the most versatile and widely used techniques for subsurface imaging is Electrical…

​Part 1: What Is an ERT Instrument? Definition:An ERT (Electrical Resistivity Tomography) instrument is a geophysical tool that maps subsurface resistivity variations by injecting electrical currents into the ground and measuring voltage differences. It combines advanced data acquisition and inversion…

TIPS：Electrical Resistivity Tomography (ERT) equipment has become essential for modern subsurface investigations. This comprehensive guide explains how high-density electrical methods work and why they outperform traditional geophysical techniques. Learn about electrode configurations, 3D imaging capabilities, and practical applications across civil…

1. Introduction Geophysical exploration methods play a crucial role in understanding subsurface structures and properties. Among these methods, the Natural Potential Method and Resistivity Method are widely used for various applications such as mineral exploration, groundwater studies, and environmental investigations.…

Bilingual Content ​1. Definition and Principles of Schlumberger Array The ​Schlumberger Array is a classic four-electrode configuration widely used in resistivity sounding and electrical prospecting. Its core feature lies in the asymmetric spacing between current electrodes (A, B) and potential electrodes…