A research team led by Zhou Xin from the Southern University of Science and Technology (SUSTech), in collaboration with the National University of Defense Technology, RIKEN (Japan), the East China Institute of Optoelectronic Integrated Devices, and Hunan Normal University, has proposed and experimentally validated a novel chip-scale gyroscope scheme. This approach leverages cusp catastrophe singularity-enhanced Coriolis effect by introducing phase tracking control and coherent mode coupling in an on-chip Coriolis vibratory gyroscope, enabling the system to operate near a third-order cusp singularity. This transforms the traditionally linear Coriolis response relative to rotational speed into a more sensitive cubic root response.
