Study on airflow sensing method based on fiber array
Citation
赵利明 (ZHAO Li-ming), 李 红 (LI Hong), 宋言明 (SONG Yan-ming), 董明利 (DONG Ming-li), & 祝连庆 (ZHU Lian-qing). (2019). 基于光纤阵列的气流传感方法研究 (Study on airflow sensing method based on fiber array). 激光与红外 (Laser & Infrared), 49(5), 599-604. doi: 10.3969/j.issn.1001-5078.2019.05.015.
Keywords
- 光纤光栅 / Fiber Bragg Grating - FBG
- 气流传感器 / Airflow Sensor
- 光纤阵列 / Fiber Array
- 硅胶基体 / Silica Gel Substrate
- 反射谱 / Reflectance Spectrum
- 流速 / Flow Velocity
- 方向传感特性 / Directional Sensing Characteristics
- 应变 / Strain
- 中心波长漂移 / Central Wavelength Drift
- 温度补偿 / Temperature Compensation
Brief
This article proposes a compact and reliable fiber optic airflow sensor based on a fiber Bragg grating array embedded in a silica gel substrate, which can measure airflow velocity (showing a quadratic relationship with central wavelength drift) and direction by monitoring changes in its reflection spectrum.
Summary
This article proposes a compact and reliable fiber optic airflow sensor using a fiber Bragg grating (FBG) array in a silica gel substrate. The sensor measures airflow velocity based on the quadratic relationship between flow speed and the central wavelength drift of the FBG's reflection spectrum and also exhibits directional sensing capabilities. It is highlighted as having a simple manufacturing process and high reliability.
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