Pressure-typed flowmeter based on Ʊ-typed few-mode fiber with temperature self-correction

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2024-12-13 DOI:10.1016/j.yofte.2024.104100

Shi-Jun Li , Ling-Xin Kong , Hao Sun , Hu Liang , Kui-Hua Ding , Zhou-Xiang Wang , Yuan Xu

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引用次数: 0

Abstract

In this paper, an optical fiber sensor with flexible skin is introduced for measuring liquid velocity and temperature. The sensor is composed of polyurethane membrane and Ʊ-typed few-mode fiber (FMF). By converting the change in liquid velocity into the pressure change borne by the polyurethane diaphragm, the interference spectrum shifts due to micro deformation of the Ʊ-typed FMF. The research results indicate that the sensitivity of the liquid velocity sensor is 0.545 nm/(m/s). At the same time, we proposed a temperature self-decoupling scheme, and solved the cross-sensitivity problem by discussing the influence of temperature on the double interference dips. The temperature measurement compensation accuracy can reach 0.348 nm/°C。Finally, we conducted experiments by placing the sensor in an actual pipeline, and the results showed that the sensor has excellent mechanical properties and thermal stability. This work is beneficial for exploring compact and high-sensitivity fiber optic flow velocity detection methods.

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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.