Patents by Inventor Yanna HAN

Yanna HAN 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).

  • Physical simulation test method for detecting position of ponding goaf in excavation
    Patent number: 11473427
    Abstract: A physical simulation test method for detecting a position of a ponding goaf in the excavation, which relates to physical detection of mines. This method includes: fabricating an experimental model of a composition similar to that of an excavating tunnel; fabricating a transient transmitting coil and receiving coil; connecting the coil to a wire and placing them in model A; connecting the coil to a transient electromagnetometer; injecting water into a trapezoidal goaf through a pre-buried plastic pipe; after the goaf is filled with water, immediately switching the transient electromagnetometer on to collect data; respectively transferring the coil to models B, C and D, injecting water and switching on the transient electromagnetometer to collect data; statistically analyzing detection and imaging results of the four models; and comparing the detection results with the actual data to determine detection accuracy and correction coefficient.
    Type: Grant
    Filed: August 11, 2019
    Date of Patent: October 18, 2022
    Assignee: Taiyuan University of Technology
    Inventors: Guorui Feng, Jiaqing Cui, Haina Jiang, Zhen Li, Cheng Song, Xiong Shen, Xiaohong Niu, Shengyong Hu, Yanna Han
  • PHYSICAL SIMULATION TEST METHOD FOR DETECTING POSITION OF PONDING GOAF IN EXCAVATION
    Publication number: 20200102825
    Abstract: A physical simulation test method for detecting a position of a ponding goaf in the excavation, which relates to physical detection of mines. This method includes: fabricating an experimental model of a composition similar to that of an excavating tunnel; fabricating a transient transmitting coil and receiving coil; connecting the coil to a wire and placing them in model A; connecting the coil to a transient electromagnetometer; injecting water into a trapezoidal goaf through a pre-buried plastic pipe; after the goaf is filled with water, immediately switching the transient electromagnetometer on to collect data; respectively transferring the coil to models B, C and D, injecting water and switching on the transient electromagnetometer to collect data; statistically analyzing detection and imaging results of the four models; and comparing the detection results with the actual data to determine detection accuracy and correction coefficient.
    Type: Application
    Filed: August 11, 2019
    Publication date: April 2, 2020
    Inventors: Guorui FENG, Jiaqing CUI, Haina JIANG, Zhen LI, Cheng SONG, Xiong SHEN, Xiaohong NIU, Shengyong HU, Yanna HAN