Patents by Inventor Yingji Wang

Yingji Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Equipment and method forecasting tunnel water inrush using magnetic resonance differential
    Patent number: 9638779
    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.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: May 2, 2017
    Assignee: JILIN UNIVERSITY
    Inventors: Yingji Wang, Jun Lin, Shuqin Sun, Chuandong Jiang, Jianpeng Wang, Bo Pang, Zhe Zhang
  • TUNNEL WATER INRUSH ADVANCE PREDICTION DEVICE USING NUCLEAR MAGNETIC RESONANCE DIFFERENCE AND METHOD
    Publication number: 20140091789
    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.
    Type: Application
    Filed: May 17, 2012
    Publication date: April 3, 2014
    Applicant: JILIN UNIVERSITY
    Inventors: Yingji Wang, Jun Lin, Shuqin Sun, Chuandong Jiang, Jianpeng Wang, Bo Pang, Zhe Zhang