Recently, a groundbreaking achievement in the field of micro-electromechanical gyroscopes has been made by the Micro-Nano Systems Team from the College of Intelligence Science and Technology at the National University of Defense Technology. This milestone was achieved in collaboration with the College of Science at the Southern University of Science and Technology, as well as the East China Institute of Optoelectronic Integrated Devices. Their research, titled "Cusp-singularity-enhanced Coriolis effect for sensitive chip-scale gyroscopes," has been published in Nature, one of the world's leading scientific journals.

The study introduces innovative phase tracking control and coherent modal coupling techniques, enabling the nested ring vibratory micro-electromechanical gyroscope system to operate near a third-order cusp singularity. This advancement successfully transforms the traditional linear Coriolis effect into a highly sensitive cubic root response mode. Experimental results demonstrate a remarkable enhancement in performance: the effective Coriolis factor is increased by approximately three orders of magnitude, the signal-to-noise ratio is improved by 253 times, and measurement accuracy is boosted by 297 times. These improvements provide a novel theoretical framework and technical pathway for specialized low-range inertial sensing applications.

The College of Intelligence Science and Technology at the National University of Defense Technology is the primary affiliated institution for this research. Doctoral student Zhang Sen is the first author, with Professor Wu Xuezhong serving as his academic advisor. The research team also includes scholars Xiao Dingbang, Wang Fei, Yu Lei, He Kaixuan, Jing Hui, Zhou Xin, and others.

This achievement represents a significant leap forward in China's development of high-performance integrated micro-inertial devices. It holds great promise for driving technological innovations across various sectors, including consumer electronics, autonomous driving, aerospace, and beyond.