Patent ID: 11860332
Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 0:
1. A semi-airborne electromagnetic survey device based on a coaxial coplanar mutual reference coil assembly, comprising the coil assembly, wherein the coil assembly comprises a measuring coil and a reference coil with linear correlation of additive motion noise, wherein
the reference coil and the measuring coil have a same bandwidth;
detection resolution of the reference coil is only capable of distinguishing the additive motion noise, and is not capable of distinguishing real vertical magnetic field signals;
detection resolution of the measuring coil is capable of distinguishing the real vertical magnetic field signals and motion noise simultaneously;
an outer diameter of the reference coil is much smaller than an outer diameter of the measuring coil;
the reference coil and the measuring coil are coaxial and coplanar; and
the measuring coil and the reference coil are in hard connection or soft connection.