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Инженерные изыскания

Three-coil EMI multi-frequency sounding devices in near-surface applications


The paper is devoted to the brief application feasibility study of three-coils multifrequency sounding device, its advantages in comparison to devices that have two-coils. Influence of initial phase determination error into secondary field measurement accuracy was assessed. The estimation results of penetration depth are presented under the following models: conductive layer with non-conductive bottom half-space and conductive layer in resistive half-space. The estimated depths were compared with depth, conventionally calculated using skin-effect approach. Several cases studies are included to prove the usefulness of multi frequency approach.

Итоговая версия опубликована: Сборник трудов Near Surface 2005 - Palermo, Italy, 4 - 7 September 2005