Collecting method and system for distributive parallel intelligent electrode potential difference signals

Abstract

The present invention relates to potential difference signal acquiring method and system for distributive parallel intelligent electrodes. In certain area, several groups of intelligent electrodes comprising several work electrodes each are distributed, and each work electrode is connected to signal regulating and measuring circuit. Each intelligent electrode has its every work electrode set in one of four work states, positive supplying electrode, negative supplying electrode, common earth and sampling. Of all the work electrodes in several intelligent electrodes, only three are in positive supplying electrode, negative supplying electrode and common earth state separately while the others being in potential difference signal sampling state. During the powering process, the natural field, primary field and secondary field of all the electrodes are measured and the potential difference signals are A / D converted and fed to computer for saving and processing circularly.

Description

Technical field: [0001] The invention belongs to the technical field of geophysical prospecting, in particular to a direct current method prospecting technique applied in the technical field of resource and environmental prospecting. Background technique: [0002] As early as the beginning of the 19th century, the prospecting technology of direct current method has been developed for nearly 200 years. Since the development of high-density electrical technology in the 1980s, electrical prospecting technology has been developed rapidly and widely used. There are mainly four methods of direct current exploration technology based on high-density electrical method: ① high density resistivity method (high density resistivity method) - it uses a three-potential electrode system, including Wenner quadrupole, dipole, and differential three-pole The device, combined with computer technology, can be widely used in site geological survey, dam foundation and bridge pier site selection, ...

AI Technical Summary

Problems solved by technology

However, the on-site measurement of the instrument requires long-term observation

④ Spectrum Induced Polarization (SIP), also known as complex resistivity method, has achieved obvious prospecting effects in metal deposits and oil and gas exploration, but the separation of IP effects and electromagnetic effects and the evaluation of IP anomalies have not completely resolved

[0003] At present, the high-density electric meter realizes one-time electrode layout, and the electrode conversion device automatically realizes the serial measurement method of multiple electrode combinations; however, for each pair of electrodes, only one pair of electrodes can measure voltage, and the other electrodes are in an idle state. The actual data acquisition process requires a lot of time to wait for the cycle of power supply measurement process in turn

The existing electrode converter does not solve the parallel acquisition method of the array electrical method (93107832.6)

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