Subsurface resistivity measurements using square waveforms

被引：9

作者：

Gasulla-Forner, M ^{[1
]}

Jordana-Barnils, J ^{[1
]}

Pallas-Areny, R ^{[1
]}

Torrents, JM ^{[1
]}

机构：

[1] Univ Politecn Catalunya, Dept Elect Engn, Div Instrumentacio & Bioengn, ES-08034 Barcelona, Spain

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1998年 / 47卷 / 01期

关键词：

conductivity measurement; data acquisition; electromagnetic coupling; sampling methods; soil measurements; synchronous detection;

D O I：

10.1109/19.728793

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This work analyzes the effect of inductive and capacitive coupling between the injecting circuit and the detecting circuit in resistive field surveys, Theoretical and experimental results demonstrate that if a square waveform is injected into the soil, and synchronous sampling is used to sample at the flat zone of the detected voltage, then the effect of the interference is greatly reduced, Furthermore, square waveforms are easier to generate than sinusoidal waveforms, so they offer a new approach to subsurface resistivity measurements.

引用

页码：74 / 77

页数：4