Hierarchical Electrode Switching Device Design for Distributed Single-Channel Electrical Resistivity Tomography System
| Autor: | Yong-Gang Jia, Xiao-Lei Liu, Xin Xia, Yu-Ying Pan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
010506 paleontology
Technology Computer science QH301-705.5 QC1-999 hierarchy 010502 geochemistry & geophysics 01 natural sciences law.invention Relay law Miniaturization General Materials Science Electrical resistivity tomography Layer (object-oriented design) Biology (General) Instrumentation QD1-999 0105 earth and related environmental sciences Fluid Flow and Transfer Processes Interconnection business.industry Process Chemistry and Technology Physics General Engineering Process (computing) Electrical engineering hardware saving distributed ERT Engineering (General). Civil engineering (General) Computer Science Applications Chemistry electrode switching device Electrode TA1-2040 business Communication channel |
| Zdroj: | Applied Sciences, Vol 11, Iss 5746, p 5746 (2021) Applied Sciences Volume 11 Issue 12 |
| ISSN: | 2076-3417 |
| Popis: | An electrode switching device (ESD) is one of the most important components of electrical resistivity tomography (ERT). It is a ligament and relay between a testing circuit and testing electrodes. Existing ESD uses a plane structure to realize the interconnection between ports and testing electrodes. Taking Wenner testing as an example, each electrode needs four additional switches. In this report, a new hardware saving ESD (HESD) is made with a hierarchical structure for a single-channel distributed ERT. HESD has two-layered switches to realize the conversion process. The first layer of 16 switches can realize four pairs of unrepeated connection between four ports—AMNB and four Lines—L1–L4. The second layer establishes the non-overlapping joints between four lines—L1–L4 and four testing electrodes. Each electrode only needs one switch for an 1D test, which has been wildly used in soil science, ocean probing, and contaminated surveys, and an odd number layer test. With the newly designed HESD, three fourths of the cost of hardware (switch) was saved compared with the conventional ESD. In addition, with two more switches, HESD was able to complete a 2D survey. The new two-layer HESD saves hardware costs and shows advantages in maintenance, system tests, and miniaturization, especially when many electrodes are required in an ERT system, which is very common in practice. |
| Databáze: | OpenAIRE |
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