Abstract. Fiber optic microstructure turbulence sensors (FOMTS) with fiber Bragg gratings can measure the rate of tangential velocity change caused by ocean turbulence. The theoretical principles of the FOMTS and demodulation were verified by a prototype. The demodulation system resolution reached 0.001 pm / Hz, the sensitivity was 4.37 × 10 − 16 m2 s2 / kg, and its natural frequency in air was 595 Hz, similar to the theoretical values. Its resonance frequency in water (534 Hz), exceeded the highest frequency of ocean turbulence (200 Hz). Furthermore, comparative experiments between the FOMTS and a commercially available sensor were performed. Good signal correspondence was observed, proving the effectiveness of the FOMTS and verifying the design principle.

中文翻译：

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用于测量海洋湍流动能耗散率的光纤布拉格光栅传感器

摘要。带有光纤布拉格光栅的光纤微结构湍流传感器 (FOMTS) 可以测量由海洋湍流引起的切向速度变化率。FOMTS和解调的理论原理通过原型验证。解调系统分辨率达到0.001 pm/Hz，灵敏度为4.37×10 − 16 m2 s2/kg，其在空气中的固有频率为595 Hz，与理论值相近。它在水中的共振频率（534Hz），超过了海洋湍流的最高频率（200Hz）。此外，还进行了 FOMTS 和市售传感器之间的对比实验。观察到良好的信号对应，证明了 FOMTS 的有效性并验证了设计原理。