近日，国防科技大学周鑫团队报道了敏感芯片级陀螺仪的尖点奇点增强科里奥利效应。该研究于2026年5月20日发表在《自然》杂志上。

陀螺仪作为基础性惯性传感器，对消费电子、汽车和航空航天等领域的旋转测量至关重要，其中应用最广泛的类型依赖科里奥利效应。芯片级科里奥利振动陀螺仪（CVG）虽减小了尺寸、重量和成本，但其性能远低于传统宏观尺度的CVG，这是因为微芯片中固有的弱科里奥利因子，从根本上限制了灵敏度提升——相对于宏观器件，微芯片中的布朗噪声本就更高。

为了突破这一物理极限，研究组提出并实验验证了在芯片级CVG的相位锁定振荡中利用位于尖点突变内的三阶奇点，从而实现科里奥利效应诱导频率调制的立方根缩放。利用这一效应，研究组将科里奥利因子提升了三个数量级，信噪比提高253倍，精度提升297倍。此外，尖点奇点还实现了一种前所未有的超灵敏相位调制亚线性测量，使硅芯片陀螺仪的信噪比性能创下纪录。这些发现不仅通过填补奇点增强科里奥利效应的观测与控制空白，为陀螺仪技术带来革命性进步，也为其他超灵敏传感应用提供了新的思路。

附：英文原文

Title: Cusp-singularity-enhanced Coriolis effect for sensitive chip-scale gyroscopes

Author: Zhang, Sen, Xiao, Dingbang, Wang, Fei, Huang, Ran, Yu, Lei, Zhou, Ning, He, Kaixuan, Wu, Xuezhong, Nori, Franco, Jing, Hui, Zhou, Xin

Issue&Volume: 2026-05-20

Abstract: Gyroscopes, as fundamental inertial sensors, are crucial for rotation measurements in the consumer electronics, automotive and aerospace industries, with the most widely used kind relying on the Coriolis effect1,2,3,4,5,6. The chip-scale Coriolis vibratory gyroscopes (CVGs) show reduced size, weight and cost1,2 but have far lower performance than traditional macroscale CVGs3,4,5,6, as the weak intrinsic Coriolis factor sets a fundamental limit on scaling the sensitivity against the inherently louder Brownian noise in microchips compared with the macroscale ones. Here, to overcome this physical limit, we propose and experimentally demonstrate the use of third-order singularities lying within cusp catastrophes in the phase-tracked oscillations of an on-chip CVG to facilitate a cubic-root scaling of the Coriolis-effect-induced frequency modulation. Using this effect, we achieve a three-orders-of-magnitude enhancement in the Coriolis factor, yielding a 253-fold improvement in the signal-to-noise ratio and a 297-fold increase in precision. Moreover, the cusp singularity enables a previously unattainable ultrasensitive phase-modulated sublinear measurement, achieving record signal-to-noise ratio performance for silicon-chip gyroscopes. These findings not only provide revolutionary advancements in gyroscope technologies, by filling the gap in observing and controlling the singularity-enhanced Coriolis effect, but also shed new light on other ultrasensitive sensing applications.

DOI: 10.1038/s41586-026-10565-w

Source: https://www.nature.com/articles/s41586-026-10565-w