Knowledge base

I. Definition and Technical Framework of IP Imaging IP (Induced Polarization) imaging is a geophysical technique that measures the polarization effects of subsurface materials under electrical excitation. By analyzing the chargeability (polarization rate) and resistivity of rocks, IP imaging can…

Introduction to ERT Geophysics Electrical Resistivity Tomography (ERT) is a cutting-edge geophysical technique used to map subsurface structures by measuring electrical resistivity variations. It applies low-frequency electrical currents to the ground and records the resulting voltage changes, creating detailed 2D…

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…