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Title:
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Subsurface resistivity measurements using square waveforms
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Author:
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Gasulla Forner, Manuel; Jordana Barnils, José; Pallàs Areny, Ramon; Torrents Dolz, Josep M.
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. IEB - Instrumentació Electrònica i Biomèdica |
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Abstract:
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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. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria biomèdica::Electrònica biomèdica
-Geophysics Data processing
-Geophysical instruments
-Signal processing Data processing
-Buried object detection
-Electric impedance measurement
-Electrical conductivity measurement
-Electromagnetic coupling
-EM coupling
-Electromagnetic interference
-EMI
-Geophysical prospecting
-Geophysical signal processing
-Signal sampling
-Soil measurements
-Terrestrial electricity
-Subsurface resistivity measurements
-Square waveforms
-Capacitive coupling
-Inductive coupling
-Detecting circuit
-Resistive field surveys
-Synchronous sampling
-Interference effect
-Data acquisition
-Synchronous detection
-Geoelectrical prospecting
-Buried structure detection
-Geofísica -- Aparells i instruments
-Processament digital -- Tècniques digitals |
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Rights:
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Document type:
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Article |
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Published by:
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IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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