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:
Oct. 18, 2022
Filed:
Aug. 11, 2019
Taiyuan University of Technology, Shanxi, CN;
Guorui Feng, Shanxi, CN;
Jiaqing Cui, Shanxi, CN;
Haina Jiang, Shanxi, CN;
Zhen Li, Shanxi, CN;
Cheng Song, Shanxi, CN;
Xiong Shen, Shanxi, CN;
Xiaohong Niu, Shanxi, CN;
Shengyong Hu, Shanxi, CN;
Yanna Han, Shanxi, CN;
Taiyuan University of Technology, Taiyuan, CN;
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.