翻訳と辞書 Words near each other ・ Vertical conveyor ・ Vertical cross-tube boiler ・ Vertical cut recording ・ Vertical damp proof barrier ・ Vertical de Aviación ・ Vertical deflection ・ Vertical dimension of occlusion ・ Vertical direction ・ Vertical disintegration ・ Vertical displacement ・ Vertical distribution of ice in Arctic clouds ・ Vertical draft ・ Vertical dyad linkage theory ・ Vertical ecosystem ・ Vertical effect ・ Vertical electrical sounding ・ Vertical Entertainment ・ Vertical exaggeration ・ Vertical farming ・ Vertical Features Remake ・ Vertical fire-tube boiler ・ Vertical flute ・ Vertical Force ・ Vertical form fill sealing machine ・ Vertical Form VI ・ Vertical formation skydiving ・ Vertical Forms ・ Vertical forward grip ・ Vertical handover ・ Vertical Horizon Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Vertical electrical sounding ： ウィキペディア英語版 Vertical electrical sounding Vertical electrical sounding (VES) is a geophysical method for investigation of a geological medium. The method is based on the estimation of the electrical conductivity or resistivity of the medium. The estimation is performed based on the measurement of voltage of electrical field induced by the distant grounded electrodes (current electrodes). ==Measurements== Figures 1–4 show the possible configuration of the measurement setup. The electrodes ''A'' and ''B'' are current electrodes which are connected to a current source; ''N'' and ''M'' are potential electrodes which are used for the voltage measurements. As source, the direct current or low frequency alternating current is used. The interpretation of the measurements can be performed based on the apparent resistivity values. The depth of investigation depends on the distance between the current electrodes. In order to obtain the apparent resistivity as the function of depth, the measurements for each position are performed with several different distances between current electrodes. The apparent resistivity is calculated as : $\backslash rho\_k=k\backslash frac\}$ here, ''k'' is a geometric factor, $\}$ — current in the line AB. The geometric factor is defined by : $k=\; \backslash frac\}-\backslash frac$ here ''r'' is the distance between electrodes. Interpretation of gathered data is performed based on the dependency ρk(AB/2). The application of large electrode arrays allows for reconstructing complex 3D structure of geological media (see Electrical resistivity tomography). However, the interpretation of such measurement is rather difficult. In this case, advanced interpretation techniques based on numerical methods can be applied. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vertical electrical sounding」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.