US Patent Issued to CCCC NATIONAL ENGINEERING RESEARCH CENTER OF DREDGING TECHNOLOGY AND EQUIPMENT on Dec. 16 for "Calculation method for measuring flatness of cross-section of tunnel segment based on spatial point-to-plane relation" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,215, issued on Dec. 16, was assigned to CCCC NATIONAL ENGINEERING RESEARCH CENTER OF DREDGING TECHNOLOGY AND EQUIPMENT Co. LTD. (Shanghai).

"Calculation method for measuring flatness of cross-section of tunnel segment based on spatial point-to-plane relation" was invented by Yuanquan Miao (Shanghai), Weihao Song (Shanghai), Hongsheng Zhang (Shanghai), Qing Xu (Shanghai), Jingdun Pang (Shanghai), Yanxing He (Shanghai), Yi Wu (Shanghai) and Jiandong Zhou (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A calculation method for measuring the flatness of cross-section of a tunnel segment, comprising: mounting laser displacement sensors on a thru...