ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,083, issued on July 15, was assigned to North University of China (Taiyuan, China).

"Method and system for measuring burning rate of propellant based on multi-channel ultrasonic waves" was invented by Juan Cui (Shanxi, China), Yongqiu Zheng (Shanxi, China), Xiaolong Yan (Shanxi, China), Wenlong Wei (Shanxi, China) and Ruizhi Wang (Shanxi, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to the technical field of solid engine burning rate test, and provides a method and system for measuring the burning rate of a propellant based on multi-channel ultrasonic waves. The method includes the following steps: collecting e...