Patent ID: 8330464

Claim:
A three-dimensional small bin electromagnetic consecutive array data acquisition method comprising the following steps: (1) applying small bin lattice data acquisition on execution of arrangement electrodes in a working area, arranging a two-component electric field acquisition station (E x , E y ) at the center of a small bin, in said small bin lattice acquisition, an “L” electrode-arrangement mode of a conventional method is used for corner points, a “T” electrode-arrangement mode of a conventional method is used for border points, and a “+” electrode-arrangement mode of a conventional method is used for a center point; arranging a two-component orthogonal horizontal magnetic field (H x , H y ) magnetic bar or a three-component orthogonal magnetic fields (H x , H y , H z ) magnetic bar at the center point of the smallest bin, wherein the directions of H x and H y are parallel to those of the electric field components; (2) acquiring data, wherein each acquisition station records natural electromagnetic field time series data with the same acquisition parameters simultaneously, and a sampling rate being set upon frequency; (3) interference is first removed during data processing to obtain interference-free data; (4) for the border points and center point, the recording point serves as the center point, adding the same component from the adjacent two points to total points respectively to obtain the average value of time domain electric field data of all survey points; for the corner points, calculate the average values of the same electric field component from the adjacent two points to the total survey points toward a bin direction; us the electric field components acquired in the maximum space as new electric field values; (5) after the observation field values are processed with the above steps, new time series data are acquired in which noise and static shift effect have been suppressed, and apparent resistivity and phase curves of each point can be acquired after processing with a conventional method.