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Using fiber Bragg grating in geothermal monitoring

Li, K., Zhou, Z.A., Liu, A.C., Ye, X.P., Li, H.X., & Cheng, D.Q. (2010) Using fiber Bragg grating in geothermal monitoring. In Xie, Furen (Ed.) Rock Stress and Earthquakes. Taylor & Francis Group, London, pp. 815-817.

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Abstract

Earthquake precursor monitoring is the foundation of earthquake prediction and geothermal monitoring is one of the basic methods of earthquake precursor monitoring. High temperature well contains more information and therefore its monitoring is more important. However, electric sensors are hard to meet the monitoring requirements of high sensitivity and long lifetime. For a better observation of the earthquake precursor, a high sensitive fiber Bragg grating (FBG) temperature sensor is designed to monitoring a well at 87.5±1◦C. The performance of the FBG sensor demonstrates that it’s quite possible that applying FBG to high-sensitivity temperature-monitoring fields, such as geothermal monitoring. As far as we known, it is the first time that trying a high sensitive FBG temperature sensor in a practical application, let alone in the field of geothermal monitoring.

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ID Code: 50860
Item Type: Book Chapter
Additional Information: paper presented in International Symposium on In-situ Rock Stress (5th : 2010 : Beijing, China)
Additional URLs:
Keywords: Fiber Bragg grating (FBG), Temperature sensor, Enhanced sensitivity
ISBN: 9780415601658
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2010 Taylor & Francis Group
Deposited On: 13 Jun 2012 01:24
Last Modified: 04 Sep 2013 09:08

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