High-density ground resistivity measurement system and method suitable for complex terrain conditions
A technology of complex terrain and ground resistivity, applied in the direction of ground resistance measurement, etc., can solve the problems of not being able to adapt to low resistivity measurement, and achieve the effects of strong anti-interference ability, strong interference ability, and ensuring effectiveness and reliability
Active Publication Date: 2020-11-03
SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP
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Problems solved by technology
[0004] In order to solve the problem that the existing high-density georesistivity measuring instrument cannot adapt to low resistivity measurement under complex geological conditions, the present invention proposes a high-density georesistivity measurement system and method suitable for complex terrain conditions. The invention has strong anti-electromagnetic interference ability, fast measurement and high sensitivity
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[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0043] Such as figure 1 As shown, a high-density resistivity measuring instrument for measuring low resistivity under complex geological conditions is composed of a main control module 1, an electrode control module 2, a full-bridge module 3, an electrode module 4, and a cable 5. The main Control module as the core, control other modules to coordinate work.
[0044] The main control module 1 is made up of a controller module 6, an RS422 communication module 7, and a data acquisition module 8. The controller module 6 adopts an STM32 single-chip microcomputer as the main control single-chip microcomputer, and the controller module 6 communicates with the electrode control module 2 through the RS422 communication module 7. Connect and communicate, used to send the electrode control command to the electrode control module 2, the data acquisition module 8 i...
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The invention discloses a high-density earth resistivity measurement system suitable for complex terrain conditions. The high-density earth resistivity measurement system comprises a master control unit, an electrode conversion unit and a full-bridge circuit. The master control unit controls the high voltage power supply and measurement state of multiple electrode modules through the electrode conversion unit. The full-bridge circuit generates AC signals and injects current to the earth through the electrode modules. The master control unit controls the arrangement mode, the electrode distance and measurement point scanning of the electrode modules through the electrode conversion unit and performs smoothing and other processing on the current, voltage, temperature, humidity and latitude and longitude signals acquired by the electrode modules so that a model meeting the actual conditions is constructed, an inversion graph is calculated and the address situation of the complex terrain conditions is obtained. The high-density earth resistivity measurement system is suitable for earth resistivity measurement under the complex terrain conditions. The latitude and longitude and the height of each electrode can be measured through the GPS, and relative height information of each electrode is fused in an inversion algorithm so that measurement inversion of complex terrain earth resistivity can be performed.
Description
technical field [0001] The invention relates to a high-density ground resistivity measurement system and method suitable for complex terrain conditions. Background technique [0002] The measurement of earth resistivity is widely used to find underground water sources, solve the water problems of human and livestock and industrial and agricultural water; it is used in hydrological engineering, environmental geological exploration and engineering geological exploration with high-resolution resistivity method; it is used in the exploration of metal and non-metallic mineral resources , Energy exploration, urban geophysical prospecting, railway and bridge engineering exploration, and used to find geothermal heat, determine the location of hidden dangers in reservoir dam foundations and flood control embankments. [0003] At present, the existing high-density georesistivity measuring instrument is basically a multi-functional direct current meter combined with a multi-channel ele...
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IPC IPC(8): G01R27/20
CPCG01R27/20
Inventor 孙旭李振宇卢晓东张文波王基文高兰杨庆义王强恒高鹏刘浩李仁杰范沛军孙长帅王毅赵哲胜
Owner SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP