Multiplexed FBG Monitoring System for Forecasting Coalmine Water Inrush Disaster
Joint Authors
Wang, J.
Sui, Q. M.
Nie, L. C.
Liu, B.
Li, S. C.
Wang, Z. F.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-06
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This paper presents a novel fiber-Bragg-grating- (FBG-) based system which can monitor and analyze multiple parameters such as temperature, strain, displacement, and seepage pressure simultaneously for forecasting coalmine water inrush disaster.
The sensors have minimum perturbation on the strain field.
And the seepage pressure sensors adopt a drawbar structure and employ a corrugated diaphragm to transmit seepage pressure to the axial strain of FBG.
The pressure sensitivity is 20.20 pm/KPa, which is 6E3 times higher than that of ordinary bare FBG.
The FBG sensors are all preembedded on the roof of mining area in coalmine water inrush model test.
Then FBG sensing network is set up applying wavelength-division multiplexing (WDM) technology.
The experiment is carried out by twelve steps, while the system acquires temperature, strain, displacement, and seepage pressure signals in real time.
The results show that strain, displacement, and seepage pressure monitored by the system change significantly before water inrush occurs, and the strain changes firstly.
Through signal fusion analyzed it can be concluded that the system provides a novel way to forecast water inrush disaster successfully.
American Psychological Association (APA)
Liu, B.& Li, S. C.& Wang, J.& Sui, Q. M.& Nie, L. C.& Wang, Z. F.. 2012. Multiplexed FBG Monitoring System for Forecasting Coalmine Water Inrush Disaster. Advances in OptoElectronics،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-506210
Modern Language Association (MLA)
Liu, B.…[et al.]. Multiplexed FBG Monitoring System for Forecasting Coalmine Water Inrush Disaster. Advances in OptoElectronics No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-506210
American Medical Association (AMA)
Liu, B.& Li, S. C.& Wang, J.& Sui, Q. M.& Nie, L. C.& Wang, Z. F.. Multiplexed FBG Monitoring System for Forecasting Coalmine Water Inrush Disaster. Advances in OptoElectronics. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-506210
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506210