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• Electrical_resistivity_tomography abstract "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. It is closely related to the medical imaging technique electrical impedance tomography (EIT), and mathematically is the same inverse problem. In contrast to medical EIT however ERT is essentially a direct current method. A related geophysical method, induced polarization, measures the transient response. The technique evolved from techniques of electrical prospecting that predate digital computers, where layers or anomalies were sought rather than images.Early work on the mathematical problem in the 1930s assumed a layered medium (see for example Langer, Slichter). Tikhonov who is best known for his work on regularization of inverse problems also worked on this problem. He explains in detail how to solve the ERT problem in a simple case of 2-layered medium. During the 1940s he collaborated with geophyicists and without the aid of computers they discovered large deposits of copper. As a result, they were awarded a State Prize of Soviet Union.When adequate computers became widely available the inverse problem of ERT could be solved numerically, and the work of Loke and Barker at Birmingham University was among the first such solution, and their approach is still widely used.With the advancement in the field of Electrical Resistivity Tomography (ERT) from 1D to 2D and now-a- days 3D, ERT has explored many fields. The applications of ERT include fault investigation, ground water table investigation, soil moisture content determination and many others. In industrial process imaging ERT can be used in a similar fashion to medical EIT, to image the distribution of conductivity in mixing vessels and pipes. In this context it is usually called Electrical Resistance Tomography, emphasising the quantity that is measured rather than imaged.".
• Electrical_resistivity_tomography thumbnail 2D_inversion_of_electrical_resistivity_data.png?width=300.
• Electrical_resistivity_tomography wikiPageExternalLink loke_course_notes.pdf.
• Electrical_resistivity_tomography wikiPageExternalLink Calderon.
• Electrical_resistivity_tomography wikiPageID "3625483".
• Electrical_resistivity_tomography wikiPageLength "4192".
• Electrical_resistivity_tomography wikiPageOutDegree "21".
• Electrical_resistivity_tomography wikiPageRevisionID "703262340".
• Electrical_resistivity_tomography wikiPageWikiLink Andrey_Nikolayevich_Tikhonov.
• Electrical_resistivity_tomography wikiPageWikiLink Borehole.
• Electrical_resistivity_tomography wikiPageWikiLink Category:Geophysical_imaging.
• Electrical_resistivity_tomography wikiPageWikiLink Category:Impedance_measurements.
• Electrical_resistivity_tomography wikiPageWikiLink Category:Inverse_problems.
• Electrical_resistivity_tomography wikiPageWikiLink Category:Multidimensional_signal_processing.
• Electrical_resistivity_tomography wikiPageWikiLink Electrical_impedance_tomography.
• Electrical_resistivity_tomography wikiPageWikiLink Electrode.
• Electrical_resistivity_tomography wikiPageWikiLink Geophysical_imaging.
• Electrical_resistivity_tomography wikiPageWikiLink Geophysics.
• Electrical_resistivity_tomography wikiPageWikiLink Induced_polarization.
• Electrical_resistivity_tomography wikiPageWikiLink Inverse_problem.
• Electrical_resistivity_tomography wikiPageWikiLink Magnetotellurics.
• Electrical_resistivity_tomography wikiPageWikiLink Proceedings_of_the_USSR_Academy_of_Sciences.
• Electrical_resistivity_tomography wikiPageWikiLink Rudolf_Ernest_Langer.
• Electrical_resistivity_tomography wikiPageWikiLink Seismo-electromagnetics.
• Electrical_resistivity_tomography wikiPageWikiLink Telluric_current.
• Electrical_resistivity_tomography wikiPageWikiLink University_of_Birmingham.
• Electrical_resistivity_tomography wikiPageWikiLink Vertical_electrical_sounding.
• Electrical_resistivity_tomography wikiPageWikiLink File:2D_inversion_of_electrical_resistivity_data.png.
• Electrical_resistivity_tomography wikiPageWikiLink File:Electrical_resistivity_tomography_profile.jpg.
• Electrical_resistivity_tomography wikiPageWikiLinkText "ERT".
• Electrical_resistivity_tomography wikiPageWikiLinkText "Electrical resistivity tomography (ERT)".
• Electrical_resistivity_tomography wikiPageWikiLinkText "Electrical resistivity tomography".
• Electrical_resistivity_tomography wikiPageWikiLinkText "electric resistivity".
• Electrical_resistivity_tomography wikiPageWikiLinkText "electrical resistivity survey".
• Electrical_resistivity_tomography wikiPageWikiLinkText "electrical resistivity tomography".
• Electrical_resistivity_tomography wikiPageWikiLinkText "geophysical".
• Electrical_resistivity_tomography wikiPageWikiLinkText "resistivity".
• Electrical_resistivity_tomography wikiPageUsesTemplate Template:Cite_book.
• Electrical_resistivity_tomography wikiPageUsesTemplate Template:Cite_journal.
• Electrical_resistivity_tomography wikiPageUsesTemplate Template:No_footnotes.
• Electrical_resistivity_tomography subject Category:Geophysical_imaging.
• Electrical_resistivity_tomography subject Category:Impedance_measurements.
• Electrical_resistivity_tomography subject Category:Inverse_problems.
• Electrical_resistivity_tomography subject Category:Multidimensional_signal_processing.
• Electrical_resistivity_tomography hypernym Technique.
• Electrical_resistivity_tomography type TopicalConcept.
• Electrical_resistivity_tomography type Function.
• Electrical_resistivity_tomography type Geophysic.
• Electrical_resistivity_tomography comment "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. It is closely related to the medical imaging technique electrical impedance tomography (EIT), and mathematically is the same inverse problem.".
• Electrical_resistivity_tomography label "Electrical resistivity tomography".
• Electrical_resistivity_tomography sameAs Q488986.
• Electrical_resistivity_tomography sameAs Geoelektrik.
• Electrical_resistivity_tomography sameAs Prospection_électrique.
• Electrical_resistivity_tomography sameAs Eerdelektrik.
• Electrical_resistivity_tomography sameAs Metoda_elektrooporowa.
• Electrical_resistivity_tomography sameAs m.09qrlf.
• Electrical_resistivity_tomography sameAs Электротомография.
• Electrical_resistivity_tomography sameAs Методи_опору.
• Electrical_resistivity_tomography sameAs Thăm_dò_điện_chiếu_trường.
• Electrical_resistivity_tomography sameAs Q488986.
• Electrical_resistivity_tomography wasDerivedFrom Electrical_resistivity_tomography?oldid=703262340.
• Electrical_resistivity_tomography depiction 2D_inversion_of_electrical_resistivity_data.png.
• Electrical_resistivity_tomography isPrimaryTopicOf Electrical_resistivity_tomography.