Electrical active-source frequency domain exploration method

The present invention relates to an active source frequency domain electrical prospecting method, which is characterized by that it utilizes the current which is transmitted into underground and possesses pseudo-random waveform containing 2n+1 (n is real number greater than or equal to 1) main frequ...

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Bibliographic Details
Main Author JISHAN HE
Format Patent
LanguageEnglish
Published 05.12.2001
Edition7
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:The present invention relates to an active source frequency domain electrical prospecting method, which is characterized by that it utilizes the current which is transmitted into underground and possesses pseudo-random waveform containing 2n+1 (n is real number greater than or equal to 1) main frequencies distributed according to 2n as exciting field source, at the same time receives and measuresthe potential difference, amplitude and phase (or real component and virtual component) of ground every main frequency and calculates several parameters of apparent resistivity of every main frequency and amplitude-frequency between all frequencies. The utilization of said invention can be substituted for all existent active source frequency domain electrical prospecting methods, and features convenient use, high efficiency, multiple parameter and high accuracy, etc.
Bibliography:Application Number: CN2000113439