Transient electromagnetic exploration device and system with shielding function

• Main Authors: WANG HAOWEN, FU NENGYI, LIAO XIAN, LIU LONGHUAN, XU ZHENGYU, HU XUQUAN
• Format: Patent
• Language: Chinese; English
• Published: 13.11.2020
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention discloses a transient electromagnetic exploration device and system with a shielding function. The device comprises a shielding layer (1), one surface of the shielding layer (1) is a shielding surface, the other surface of the shielding layer (1) is an exploration surface, and the exploration surface side of the shielding layer (1) is provided with a transmitting coil (2) and n receiving coils (3). The direction of magnetic force lines generated by the transmitting coil (2) is perpendicular to the shielding layer (1), and the direction of the magnetic force lines in the transmitting coil (2) is far away from the exploration surface of the shielding layer (1). The structural arrangement is simple, the design is ingenious, a shielding layer is formed, and radiation and interference to human bodies and instruments on the shielding surface side are effectively reduced; and the unexpected eddy current response on the shielding surface side is weakened along with a primary field, so that the influence