公开(公告)号：US20230417943A1

公开(公告)日：2023-12-28

申请号：US17940005

申请日：2022-09-08

Applicant: University of Science and Technology Beijing

Inventor： Dazhao SONG ,  Yuqing CHENG ,  Xueqiu HE ,  Menghan WEI ,  Yongjun TONG

IPC: G01V3/08

CPC classification number: G01V3/081

Abstract: A method of locating a failure of coal-rock-concrete based on vector features of a near-field electromagnetic field is provided. The method senses and records the real electromagnetic field vector information in space by arranging a triaxial electromagnetic sensor array around a coal-rock-concrete body, and realizes the localization of the failure areas of the coal-rock-concrete body by establishing an electromagnetic radiation localization model for the failures of the coal-rock concrete body. The electromagnetic radiation localization model for the failures of the coal-rock concrete body approximates the radiation source of electromagnetic radiation generated by failures as a dipole with a dipole moment, so as to realize the localization of a large number of relatively small-intensity failures during the disaster incubation stage and evolution process, realize the monitoring and early warning of the final disaster locations, and further improve the reliability of electromagnetic radiation positioning technology.