Next Article in Journal
Design and Electro-Thermo-Mechanical Behavior Analysis of Au/Si3N4 Bimorph Microcantilevers for Static Mode Sensing
Previous Article in Journal
Fall Prediction and Prevention Systems: Recent Trends, Challenges, and Future Research Directions
Previous Article in Special Issue
Augmented Reality as a Telemedicine Platform for Remote Procedural Training
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessReview
Sensors 2017, 17(11), 2511; https://doi.org/10.3390/s17112511

A Review of Hybrid Fiber-Optic Distributed Simultaneous Vibration and Temperature Sensing Technology and Its Geophysical Applications

1
Geophysical Engineering Department, Montana Tech of the University of Montana, Butte, MT 59701, USA
2
Physics Department, University of Alberta, Edmonton, AB T6G2E1, Canada
Current address: 1300 West Park Street, Butte, MT 59701, USA.
*
Author to whom correspondence should be addressed.
Received: 14 September 2017 / Revised: 10 October 2017 / Accepted: 21 October 2017 / Published: 1 November 2017
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Canada 2017)
Full-Text   |   PDF [3921 KB, uploaded 1 November 2017]   |  

Abstract

Distributed sensing systems can transform an optical fiber cable into an array of sensors, allowing users to detect and monitor multiple physical parameters such as temperature, vibration and strain with fine spatial and temporal resolution over a long distance. Fiber-optic distributed acoustic sensing (DAS) and distributed temperature sensing (DTS) systems have been developed for various applications with varied spatial resolution, and spectral and sensing range. Rayleigh scattering-based phase optical time domain reflectometry (OTDR) for vibration and Raman/Brillouin scattering-based OTDR for temperature and strain measurements have been developed over the past two decades. The key challenge has been to find a methodology that would enable the physical parameters to be determined at any point along the sensing fiber with high sensitivity and spatial resolution, yet within acceptable frequency range for dynamic vibration, and temperature detection. There are many applications, especially in geophysical and mining engineering where simultaneous measurements of vibration and temperature are essential. In this article, recent developments of different hybrid systems for simultaneous vibration, temperature and strain measurements are analyzed based on their operation principles and performance. Then, challenges and limitations of the systems are highlighted for geophysical applications. View Full-Text
Keywords: fiber-optic distributed sensing; vibration; temperature; geophysical applications; digital signal processing fiber-optic distributed sensing; vibration; temperature; geophysical applications; digital signal processing
Figures

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).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Miah, K.; Potter, D.K. A Review of Hybrid Fiber-Optic Distributed Simultaneous Vibration and Temperature Sensing Technology and Its Geophysical Applications. Sensors 2017, 17, 2511.

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

1

Comments

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