ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,458, issued on April 21, was assigned to China University of Mining and Technology (Xuzhou, China).

"Fiber Bragg grating curvature sensing test device and test method thereof" was invented by Xinqiu Fang (Xuzhou, China), Yang Song (Xuzhou, China), Ningning Chen (Xuzhou, China), Haotian Feng (Xuzhou, China), Minfu Liang (Xuzhou, China), Gang Wu (Xuzhou, China), Ziyue Xu (Xuzhou, China) and Fukang Qiao (Xuzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An FBG curvature sensing test device and a test method thereof are provided. The test device includes a test platform, an FBG demodulator, and a computer. The test platform includes an optic...