Electrical resistivity tomography (ERT) or electrical resistivity imaging (ERI) is a geophysical technique for imaging sub-surface structures from electrical resistivity measurements made at the surface, or by electrodes in one or more boreholes. If the electrodes are suspended in the boreholes, deeper sections can be investigated.

2015年4月18日 · Approximate layer thickness can be obtained by comparing the observed curves of resistivity versus electrode spacing with a set of standard curves. The procedure known as electrical profiling is used in the investigation of lateral variation of soil types.

What does ERT measure? ERT determines the electrical resistivity of material through which an electric current is passed. The resistivity is a measure of the material's ability to oppose the flow of electric current.

The ERT method is an electrical testing method where current is induced in the ground using two current electrodes. The electrical potential drop is then read using two other electrodes.

Electrical resistivity tomography (ERT): It is one of the most important Geophysical tool for imaging the shallow subsurface soil and for characterization of soil for making the soil profile.

Electrical Resistivity Tomography (ERT) is an advanced geophysics method used to determine the subsurface’s resistivity distribution by making measurements on the ground surface. ERT data are rapidly collected with an automated multi-electrode resistivity meter.

2024年4月4日 · Electrical resistivity tomography (ERT) has turned out to be one of the most applied and user-friendly geophysical methods in geotechnical and geoenvironmental research. ERT is an emerging technology that is becoming popular nowadays for …

2019年12月3日 · Electrical resistivity tomography (ERT) is a geophysical method used to image the subsurface using differences in measured electrical resistivity at the surface. These differences in resistivity can be tied to the porosity, fluid content, and degree of water content in the subsurface [1].

2025年2月19日 · Electrical Resistivity Tomography (ERT), also known as electrical resistivity imaging (ERI), is a geophysical method used to determine the electrical resistivity distribution of the subsurface. By measuring resistivity variations, it is possible to generate a detailed resistivity profile of the underground environment.

2018年12月14日 · Electrical resistivity tomography (ERT) is a popular geophysical subsurface-imaging technique and widely applied to mineral prospecting, hydrological exploration, environmental investigation and civil engineering, as well as archaeological mapping.