The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2017
Filed:
May. 17, 2012
Yingji Wang, Jilin, CN;
Jun Lin, Jilin, CN;
Shuqin Sun, Jilin, CN;
Chuandong Jiang, Jilin, CN;
Jianpeng Wang, Jilin, CN;
BO Pang, Jilin, CN;
Zhe Zhang, Jilin, CN;
Yingji Wang, Jilin, CN;
Jun Lin, Jilin, CN;
Shuqin Sun, Jilin, CN;
Chuandong Jiang, Jilin, CN;
Jianpeng Wang, Jilin, CN;
Bo Pang, Jilin, CN;
Zhe Zhang, Jilin, CN;
JILIN UNIVERSITY, Jilin, CN;
Abstract
An equipment and method for forecasting tunnel water inrush using a magnetic resonance differential, where a computer is connected to a transmitting bridge circuit through a high voltage power supply, to a control unit, a first and second signal modulating circuits and a multi-channel collecting circuit; the control unit is connected to a transmitting driver circuit, a first and second protection switches, and the transmitting bridge circuit through the transmitting driver circuit; two ends of a transceiving multi-turn coil are connected to the multi-channel collecting circuit through the first and second protection switches; two ends of a receiving multi-turn coil are connected to the multi-channel collecting circuit through the second protection switch and the second signal modulating circuit; one end of the transceiving multi-turn coil is connected to the transmitting bridge circuit, and the other end is connected to the transmitting bridge circuit through a resonant capacitor.