1. 中国地质大学(北京)地球物理与信息技术学院, 北京 100083
• 出版日期:2014-11-27
• 基金资助:
国家高技术研究发展计划项目“大功率井—地多参数成像系统”(编号: SS2012AA063003)资助

### Complex Resistivity Measurement Method and Model Simulation

Shuangchao Ge( ), Ming Deng, Kai Chen

1. School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China
• Online:2014-11-27 Published:2014-11-20

The development and the current research situations at home and abroad of complex resistivity measurement were introduced and existing problems pointed out. A measurement method in time domain with Gaussian White Noise as input signal was proposed. The complex resistivity measurement model was built by simulink in matlab and the simulation was tested. The complex resistivity was obtained combined by time domain and frequency domain method. Then, the comparison and analysis between the calculated value and theoretical value were conducted, and results showed that the complex resistivity gained by this method was coincided with the real electrical characteristics of the model.

Fig.1 Complex resistivity method artificial circuit

Fig.2 Time domain waveform of current and voltage

Fig.3 Frequency domain waveform of current and voltage

Fig.4 Comparison between calculated and theoretical values

Fig.5 Comparison between calculated and theoretical values of observed value with random disturbance
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