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11. Physical Model of Discontinuity Response in Landslide Application Using Geometry Normalized Electromagnetic System (GNES).

Author

Surbakti, Muhammad Syukri, Bukhari, Ismail, Nazli, Idris, Nasrullah, Isa, Muhammad, Yusibani, Elin, Zakaria, Nurman, Muhammad, and Jafri, MohdZubir Mat

Subjects
*ALUMINUM plates, *LANDSLIDES, *ELECTROMAGNETIC fields, *METAL defects, *GEOMETRY, *EDDIES
Abstract

The discontinuity in a fractured land in landslide application could be represented by the metal defects in the physical modeling that will usually reduce the mass of the metal. The scale factor n is important for interpreting the field data using the physical model data. In this physical modeling (n=100), the anomaly targets are aluminum plates and aluminum plates with the discontinuities. It is assumed the nonconductive environment. In the free-air condition which has zero conductivity is become representative of this environment. In the zero conductivity, the secondary field from the medium is not presence. In this condition, there are no phase differences between transmitted electromagnetic fields and that was received by the receiver. The discontinuity in this term is any treatment or defect that causes disruption or leads to a reduction in response triggered by the eddy currents. The discontinuities used on the thin plates and flaws will interrupt or reduce the eddy current flow on the plate, thereby reducing the induced voltage on the receiving coil and increasing its effective impedance. This is the basis of eddy current measurement. The electromagnetic field response to a metal that has discontinuities will change the eddy current portion. The eddy current that changes, therefore, will change the second field so that the percent response (% Response) of the receiver in the Geometry Normalized Electromagnetic System (GNES) instrument will also change. [ABSTRACT FROM AUTHOR]

Published
2020
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