Design of Three-Dimensional Electrical Impedance Tomography System for Rock Samples
Source abstract
Abstract
Research on the electrical properties of rocks and ores plays a crucial role in the development of geophysical electromagnetism methods. However, currently available instruments suffer from high power consumption, a limited number of electrodes, inaccurate measurements, poor portability, and a limited ability to measure the electrical parameters of rocks and ores. To address these issues, this paper presents a three-dimensional electrical impedance tomography system for rock samples with high-density microelectrodes based on an Android system and STM32 microcontroller. The system features high observation accuracy, dense electrode arrays (with 384 current and potential electrodes), flexible electrode selection, user-friendly human–computer interaction, good stability, and real-time performance. Powered by a single power bank, the entire instrument can be controlled and monitored wirelessly via Bluetooth and Wi-Fi technology using an Android smartphone. Additionally, the system not only enables accurate measurement of electrical parameters, but also facilitates the generation of three-dimensional impedance imaging of specimens via inversion algorithms after data export, allowing for a comprehensive understanding of the electrical properties of rocks and ores. This system holds great potential for future research in this field.
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Research context
OpenAlex topics: Geophysical and Geoelectrical Methods · Geophysical Methods and Applications · Electrical and Bioimpedance Tomography
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Geoscience and Info-Physics, Central South University, Changsha 410083, China
AIoT Innovation and Entrepreneurship Education Center for Geology and Geophysics, Central South University, Changsha 410083, China
Control Technology Institute, Wuxi Institute of Technology, Wuxi 214121, China
School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
Key Laboratory of Metalorganic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education, Changsha 410083, China
Hunan Key Laboratory of Non-Ferrous Resources and Geological Hazard Detection, Changsha 410083, China
Funding
National Key R&D Program · Jiangsu Province Higher Education Basic Science (Natural Science) Research General Project · Jiangsu Province “Shuangchuang doctor” Program · school-level doctoral research project
References (38)
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