Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Fiber Bragg grating accelerometer-based nonintrusive flow rate measurements and leak detection

Not Accessible

Your library or personal account may give you access

Abstract

We aim to develop a nonintrusive, reliable, convenient flow rate measurement and leak detection method. The flow rate is known to be related to the vibration excited by the turbulent internal flow, but there exists some scatter in the vibration data at low flow speeds (${\lt}{{2}}\;{\rm{m/s}}$) due to the resolution limits of the sensor. A customized fiber Bragg grating acceleration sensor is designed and applied to measure the low flow rate and detect leakage in the pipeline. Experimental tests show the relationship between the standard deviation of vibration data and flow rate at low velocity is quadratic; the ${R^2}$ of quadratic curve fitting is 0.990. Moreover, for leak detection, selected features are used as the input of support vector machine classifiers to identify the leak in the pipeline. The results demonstrate that the proposed method achieves a high accuracy of 99.00% to determine the leak state and nonleak state.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Water hammer detection based on FIV online analysis using a distributed fiber optic sensor

Jian Zheng, Zhou Sha, Hao Feng, Heng Lu, Xiaonv Wu, and Shuainan Chen
Appl. Opt. 62(28) 7455-7462 (2023)

Optical fiber flow sensor based on a lever–hinge configuration

Dongyu Zhang, Yan Bai, Guoquan Liu, Qiang Chen, and Xueguang Qiao
Appl. Opt. 62(16) 4268-4274 (2023)

High-frequency fiber Bragg gating accelerometer and strain sensor-based blast test on a concrete slab

Ke Jiang, Lei Liang, Shu Dai, Hui Wang, Zhiyuan Song, and Chen Li
Appl. Opt. 61(2) 554-562 (2022)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (14)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved