Chinese Academy of Geological Sciences

Guixiang Meng

Jiayong Yan

Chong Wei Zhang

Qingtian Lyu

Yitao Pu

Hanging Qiao

Ronghui Xue

A distributed three-dimensional (3D) induced polarization (IP) data acquisition and processing device, including: a transmitter module, a computer and multiple receiver modules, where the transmitter module is configured to transmit a preset current signal to a ground where a region to be measured is located, and record the current signal in real time; the receiver modules each are configured to acquire a voltage signal and an apparent polarizability of the ground where the region to be measured is located, and record the voltage signal and the apparent polarizability in real time; and the computer is configured to acquire the current signal, the voltage signal and the apparent polarizability, respectively process the current signal and the voltage signal to obtain an apparent resistivity of the region to be measured, and analyze, according to the apparent polarizability and the apparent resistivity, a polarizability and a conductivity of the region to be measured.

Distributed three-dimensional (3D) induced polarization (IP) data acquisition and processing device and method

An aerial-and-ground data combined gravity conversion method includes the following steps: calculate the first estimated ground gravity by the Runge-Kutta format 1, and calculate the first error between the first estimated ground gravity and the measured ground gravity; calculate the second estimated ground gravity by the Runge-Kutta format 2, and calculate the second error between the second estimated ground gravity and the measured ground gravity; and select the smaller one from the first and second errors, use the corresponding Runge-Kutta format as the Runge-Kutta format for gravity conversion, and finish the gravity data conversion using the mentioned Runge-Kutta format.

Aerial-and-ground data combined gravity conversion method and system

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Beijing, China

Guixiang Meng