光学
干涉测量
灵敏度(控制系统)
光纤传感器
材料科学
光子学
解调
光纤
光电子学
物理
电信
电子工程
计算机科学
频道(广播)
工程类
作者
Yucheng Yao,Jianhua Yuan,Zhiyong Zhao,Li Shen,Weijun Tong,Ming Tang
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-11-18
卷期号:48 (23): 6128-6128
摘要
We propose and experimentally demonstrate a high-resolution, high-sensitivity liquid level sensor based on a multicore fiber (MCF) Michelson interferometer (MI), where the sensing fiber is securely affixed to a cantilever beam, such that liquid level variations will change the beam’s curvature, meanwhile leading to a substantial phase difference between the two interfering arms of the MI, and the sensor is interrogated using a microwave photonics filter (MPF) system, which can provide greatly enhanced measurement resolution compared to the traditional optical wavelength demodulation methods. The angular position of the MCF is precisely calibrated to ensure optimal sensitivity of the MI sensor. As a result, within a measurement range of up to ±14 cm, the proposed liquid level sensor achieves a sensitivity of 10.35 MHz/cm and an impressive resolution of 0.04835 cm. The proposed sensor has unique advantages of high sensitivity, superior resolution, long-term stability, etc.
科研通智能强力驱动
Strongly Powered by AbleSci AI