Next Article in Journal / Special Issue
Design of Novel FBG-Based Sensor of Differential Pressure with Magnetic Transfer
Previous Article in Journal
CSAC Characterization and Its Impact on GNSS Clock Augmentation Performance
Previous Article in Special Issue
Ultrafast Fiber Bragg Grating Interrogation for Sensing in Detonation and Shock Wave Experiments
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(2), 374;

Optical Sensor of Thermal Gas Flow Based on Fiber Bragg Grating

College of Information Science and Technology, Heilongjiang University, Harbin 150080, China
Research Center for Fiber Optic Sensing Technology National Local Joint Engineering, Electronic Engineering College, Heilongjiang University, Harbin 150080, China
Physics Department, Harbin Institute of Technology, Harbin 150001, China
Author to whom correspondence should be addressed.
Academic Editors: Christophe Caucheteur and Tuan Guo
Received: 14 December 2016 / Revised: 10 February 2017 / Accepted: 13 February 2017 / Published: 15 February 2017
(This article belongs to the Special Issue Recent Advances in Fiber Bragg Grating Sensing)
Full-Text   |   PDF [1833 KB, uploaded 15 February 2017]   |  


This paper aims at solving the problem of explosion proof in measurement of thermal gas flow using electronic sensor by presenting a new type of flow sensor by optical fiber heating. A measuring unit based on fiber Bragg grating (FBG) for fluid temperature and a unit for heat dissipation are designed to replace the traditional electronic sensors. The light in C band from the amplified spontaneous emission (ASE) light source is split, with one part used to heat the absorbing coating and the other part used in the signal processing unit. In the heating unit, an absorbing coating is introduced to replace the traditional resistance heating module to minimize the risk of explosion. The measurement results demonstrate a fine consistency between the flow and temperature difference in simulation. The method to enhance the measurement resolution of flow is also discussed. View Full-Text
Keywords: fiber Bragg grating; heat flow sensor; constant power method; light absorbing coating fiber Bragg grating; heat flow sensor; constant power method; light absorbing coating

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Jiang, X.; Wang, K.; Li, J.; Zhan, H.; Song, Z.; Che, G.; Lyu, G. Optical Sensor of Thermal Gas Flow Based on Fiber Bragg Grating. Sensors 2017, 17, 374.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top