Synchronization bandwidth enhancement induced by a parametrically excited oscillator.

IF 7.3 1区工程技术 Q1 INSTRUMENTS & INSTRUMENTATION Microsystems & Nanoengineering Pub Date : 2024-07-08 eCollection Date: 2024-01-01 DOI:10.1038/s41378-024-00709-1

Jiahao Song, Yutao Xu, Qiqi Yang, Ronghua Huan, Xueyong Wei

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Abstract

The synchronization phenomenon in nature has been utilized in sensing and timekeeping fields due to its numerous advantages, including amplitude and frequency stabilization, noise reduction, and sensitivity improvement. However, the limited synchronization bandwidth hinders its broader application, and few techniques have been explored to enhance this aspect. In this paper, we conducted theoretical and experimental studies on the unidirectional synchronization characteristics of a resonator with phase lock loop oscillation. A novel enhancement method for the synchronization bandwidth using a parametrically excited MEMS oscillator is proposed, which achieves a remarkably large synchronization bandwidth of 8.85 kHz, covering more than 94% of the hysteresis interval. Importantly, the proposed method exhibits significant potential for high-order synchronization and frequency stabilization compared to the conventional directly excited oscillator. These findings present an effective approach for expanding the synchronization bandwidth, which has promising applications in nonlinear sensing, fully mechanical frequency dividers, and high-precision time references.

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参量激励振荡器诱导的同步带宽增强。

自然界中的同步现象具有许多优点，包括振幅和频率稳定、降噪和提高灵敏度，因此已被用于传感和计时领域。然而，有限的同步带宽阻碍了其更广泛的应用，而且很少有人探索如何增强这方面的技术。本文对具有锁相环振荡的谐振器的单向同步特性进行了理论和实验研究。我们提出了一种利用参数激励 MEMS 振荡器增强同步带宽的新方法，该方法实现了 8.85 kHz 的超大同步带宽，覆盖了 94% 以上的滞后区间。重要的是，与传统的直接激励振荡器相比，所提出的方法在高阶同步和频率稳定方面具有巨大潜力。这些发现提出了一种扩大同步带宽的有效方法，在非线性传感、全机械分频器和高精度时间基准方面具有广阔的应用前景。

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来源期刊

Microsystems & Nanoengineering Materials Science-Materials Science (miscellaneous)

CiteScore

12.00

自引率

3.80%

发文量

123

审稿时长

20 weeks

期刊介绍： Microsystems & Nanoengineering is a comprehensive online journal that focuses on the field of Micro and Nano Electro Mechanical Systems (MEMS and NEMS). It provides a platform for researchers to share their original research findings and review articles in this area. The journal covers a wide range of topics, from fundamental research to practical applications. Published by Springer Nature, in collaboration with the Aerospace Information Research Institute, Chinese Academy of Sciences, and with the support of the State Key Laboratory of Transducer Technology, it is an esteemed publication in the field. As an open access journal, it offers free access to its content, allowing readers from around the world to benefit from the latest developments in MEMS and NEMS.