Design and experimental Validation of an FBG accelerometer using Cantilever-Hinge structures

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Optical Fiber Technology Pub Date : 2025-05-01 Epub Date: 2025-02-02 DOI:10.1016/j.yofte.2025.104156

Yingnan Chen , Xinhao Li , Wenhao Xia , Faxiang Zhang , Shaodong Jiang

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Abstract

The FBG accelerometer, due to its advantages such as high sensitivity, wide frequency response, immunity to electromagnetic interference, strong corrosion resistance, and miniaturization, has wide applications in engineering fields. Under the premise of ensuring the sensor’s quality factor (Q), this paper introduces an FBG accelerometer featuring a cantilever-hinge structure, which effectively reduces the design and manufacturing complexity of the accelerometer. The accelerometer model is established using vibration theory, with structural optimization and simulation conducted in MATLAB and ANSYS. The accelerometer’s performance was evaluated through experimental testing. The study indicates that the accelerometer’s resonance frequency is 510 Hz, with a smooth frequency response between 0.1 Hz and 150 Hz. Its sensitivity is 54.12 pm/g, while the cross-sensitivity is under 9.7 %. This study offers a new approach to optimizing FBG accelerometer design, facilitating its broader engineering applications.

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悬臂-铰链结构光纤光栅加速度计的设计与实验验证

光纤光栅加速度计由于具有灵敏度高、频响宽、抗电磁干扰、耐腐蚀性强、小型化等优点，在工程领域有着广泛的应用。在保证传感器质量因子Q的前提下，本文介绍了一种悬臂-铰链结构的光纤光栅加速度计，有效地降低了加速度计的设计和制造复杂性。利用振动理论建立加速度计模型，在MATLAB和ANSYS中进行结构优化和仿真。通过实验测试对加速度计的性能进行了评价。研究表明，加速度计的谐振频率为510 Hz，频率响应在0.1 Hz ~ 150 Hz之间平滑。灵敏度为54.12 pm/g，交叉灵敏度低于9.7%。本研究提供了一种优化光纤光栅加速度计设计的新方法，促进了其更广泛的工程应用。

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.