US 12,467,964 B1
Universal channel device and control method for electromagnetic instrument
Xiangyun Hu, Hubei (CN); Lichao Liu, Hubei (CN); Hongzhu Cai, Hubei (CN); Wang Luo, Hubei (CN); Ri Wang, Hubei (CN); Yangyang Han, Hubei (CN); and Jiahao Zhao, Hubei (CN)
Assigned to China University of Geosciences, Wuhan, Hubei (CN)
Filed by China University of Geosciences, Wuhan, Hubei (CN)
Filed on May 6, 2025, as Appl. No. 19/200,605.
Claims priority of application No. 202410555983.9 (CN), filed on May 7, 2024.
Int. Cl. G01R 29/12 (2006.01)
CPC G01R 29/12 (2013.01) 7 Claims
OG exemplary drawing
 
1. A universal channel device for electromagnetic instruments, comprising: a plurality of measurement channels, a plurality of single electrode connectors, a multi-electrode connector, a plurality of magnetic field connectors and a plurality of double pole double throw switches;
wherein two third ports of each of the plurality of double pole double throw switches are correspondingly connected to one of the plurality of measurement channels, two ports on a first side of each of the plurality of double pole double throw switches are respectively connected to a positive input terminal and a negative input terminal of two of the plurality of single electrode connectors or the plurality of magnetic field connectors, two ports on a second side of each of the plurality of double pole double throw switches are connected to the multi-electrode connector;
in electromagnetic method testing, each of the plurality of single electrode connectors is connected to an electric field sensor, and each of the plurality of magnetic field connectors is connected to a magnetic field sensor;
a corresponding measurement channel of the plurality of measurement channels that corresponds to every two of the plurality of single electrode connectors is provided to measure electric field signals or the corresponding measurement channel is connected through the plurality of double pole double throw switches to the multi-electrode connector for measuring the electric field signals;
the corresponding measurement channel is further provided to measure magnetic field signals or the corresponding measurement channel is connected through the plurality of double pole double throw switches to the multi-electrode connector for measuring the electric field signals;
wherein four of the plurality of single electrode connectors, three of the plurality of magnetic field connectors, five of the plurality of double pole double throw switches, and five of the plurality of measurement channels are provided;
a first single electrode connector is connected to a first port on a first side of a first double pole double throw switch, a second single electrode connector is connected to a second port on the first side of the first double pole double throw switch, two third ports of the first double pole double throw switch are connected to a first measurement channel, two ports on a second side of the first double pole double throw switch are connected to the multi-electrode connector;
a third single electrode connector is connected to a first port on a first side of a second double pole double throw switch, a fourth single electrode connector is connected to a second port on the first side of the second double pole double throw switch, two third ports of the second double pole double throw switch are connected to a second measurement channel, two ports on a second side of the second double pole double throw switch are connected to the multi-electrode connector;
a positive input terminal and a negative input terminal of a first magnetic field connector are respectively connected to two ports on a first side of a third double pole double throw switch, two ports on a second side of the third double pole double throw switch are connected to the multi-electrode connector; a third port of the third double pole double throw switch is connected to a third measurement channel;
a positive input terminal and a negative input terminal of a second magnetic field connector are respectively connected to two ports on a first side of a fourth double pole double throw switch, two ports on a second side of the fourth double pole double throw switch are connected to the multi-electrode connector, a third port of the fourth double pole double throw switch is connected to a fourth measurement channel;
a positive input terminal and a negative input terminal of a third magnetic field connector are respectively connected to two ports on a first side of a fifth double pole double throw switch, two ports on a second side of the fifth double pole double throw switch are connected to the multi-electrode connector, a third port of the fifth double pole double throw switch is connected to a fifth measurement channel.