Static pressure response model of fluorescent pressure-sensitive film for underwater surface pressure measurement

IF 2.3 3区工程技术 Q2 ENGINEERING, MECHANICAL

Flow Measurement and Instrumentation Pub Date : 2024-08-22 DOI:10.1016/j.flowmeasinst.2024.102677

Jiawei Chen , Yingzheng Liu , Zhaomin Cao , Di Peng , Benlong Wang , Shijun Liao

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引用次数: 0

Abstract

The fluorescent pressure-sensitive film (FPSF) is a non-contact, deformation-based optical pressure sensor with high spatial resolution. The pressure response principle of FPSF is to convert pressure change into variations in fluorescent intensity through the deformation of fluorescent microspheres embedded within the film. To quantitatively analyze the pressure–deformation–intensity mechanism, a static pressure response model was established in this study. First, a finite element model was developed to predict the deformation of microspheres within the film under pressure. Second, the deformation-induced variation in fluorescent intensity was modeled with consideration of the light path blockage effect. The pressure calibration curve of the FPSF predicted by the proposed model was noted to be consistent with the experimental results of underwater calibration. In addition, the relationship between pressure sensitivity and the structural parameters of the FPSF were investigated using the pressure response model.

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用于水下表面压力测量的荧光压敏薄膜的静压响应模型

荧光压敏薄膜（FPSF）是一种基于形变的非接触式光学压力传感器，具有很高的空间分辨率。FPSF 的压力响应原理是通过嵌入薄膜中的荧光微球的形变将压力变化转化为荧光强度的变化。为了定量分析压力-变形-强度机制，本研究建立了一个静态压力响应模型。首先，建立了一个有限元模型来预测微球在压力下在薄膜内的变形。其次，考虑到光路阻塞效应，建立了由变形引起的荧光强度变化模型。结果表明，所提出模型预测的 FPSF 压力校准曲线与水下校准的实验结果一致。此外，还利用压力响应模型研究了压力灵敏度与 FPSF 结构参数之间的关系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Flow Measurement and Instrumentation 工程技术-工程：机械

CiteScore

4.30

自引率

13.60%

发文量

123

审稿时长

6 months

期刊介绍： Flow Measurement and Instrumentation is dedicated to disseminating the latest research results on all aspects of flow measurement, in both closed conduits and open channels. The design of flow measurement systems involves a wide variety of multidisciplinary activities including modelling the flow sensor, the fluid flow and the sensor/fluid interactions through the use of computation techniques; the development of advanced transducer systems and their associated signal processing and the laboratory and field assessment of the overall system under ideal and disturbed conditions. FMI is the essential forum for critical information exchange, and contributions are particularly encouraged in the following areas of interest: Modelling: the application of mathematical and computational modelling to the interaction of fluid dynamics with flowmeters, including flowmeter behaviour, improved flowmeter design and installation problems. Application of CAD/CAE techniques to flowmeter modelling are eligible. Design and development: the detailed design of the flowmeter head and/or signal processing aspects of novel flowmeters. Emphasis is given to papers identifying new sensor configurations, multisensor flow measurement systems, non-intrusive flow metering techniques and the application of microelectronic techniques in smart or intelligent systems. Calibration techniques: including descriptions of new or existing calibration facilities and techniques, calibration data from different flowmeter types, and calibration intercomparison data from different laboratories. Installation effect data: dealing with the effects of non-ideal flow conditions on flowmeters. Papers combining a theoretical understanding of flowmeter behaviour with experimental work are particularly welcome.