Study on FBG-based sensor for simultaneous dual-measurement of pressure and temperature

Zhi Zhou; Dan Wang; Jun He; Jinping Ou

doi:10.1117/12.725937

5 March 2007 Study on FBG-based sensor for simultaneous dual-measurement of pressure and temperature

Zhi Zhou, Dan Wang, Jun He, Jinping Ou

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65953L (2007) https://doi.org/10.1117/12.725937
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

FBG sensors are more and more accepted in most area of Structure Health Monitoring. However, due to the fact that FBG senses both strain and temperature is monitored simultaneously, temperature compensation for FBG strain sensors of long-term structural monitoring is indispensable. In this paper, based on the FBG's strain and temperature sensing principles, a novel FBG-based sensor for simultaneous dual-measurement of pressure and temperature has been developed. Firstly, in consideration of the requirement of sensors, a novel sensor structure has been designed and its sensing principle is given in details. Secondly, the properties of FBG-based sensor for simultaneous dual-measurement of pressure have been tested by some experiments. Finally, theoretical sensitivity has been compared with that from experiments. The research results show that the FBG-based sensor for simultaneous dual-measurement of pressure has good linearity, repetition, immunity of temperature changes. Such kind of FBG-based sensor for simultaneous dual-measurement ofpressure can be used to practical monitors.

Citation Download Citation

Zhi Zhou, Dan Wang, Jun He, and Jinping Ou "Study on FBG-based sensor for simultaneous dual-measurement of pressure and temperature", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65953L (5 March 2007); https://doi.org/10.1117/12.725937

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