"Simultaneous Measurement of Temperature and Pressure with Cascaded Ext" by Yinan Zhang, Jie Huang et al.
 

Abstract

This paper presents an approach for simultaneous measurement of temperature and pressure using miniaturized fiber inline sensors. The approach utilizes the cascaded optical fiber inline intrinsic Fabry-Perot interferometer and extrinsic Fabry-Perot interferometer as temperature and pressure sensing elements, respectively. A CO2 laser was used to create a loss between them to balance their reflection power levels. The multiplexed signals were demodulated using a Fast Fourier transform-based wavelength tracking method. Experimental results showed that the sensing system could measure temperature and pressure unambiguously in a pressure range of 0 to 6.895 x 105 Pa and a temperature range from 20°C to 700°C.

Department(s)

Electrical and Computer Engineering

Sponsor(s)

National Energy Technology Laboratory (U.S.)

Comments

The research work was supported by Department of Energy (DOE)-National Energy Technology Laboratory (NETL) under the contract DE-FE0001127.

Keywords and Phrases

Carbon dioxide; Fast Fourier transforms; Fiber optic sensors; Optical fibers; Pressure; Temperature; Extrinsic Fabry Perot interferometer; Intrinsic Fabry-Perot interferometers; Multiplexed signals; Sensing systems; Simultaneous measurement; Temperature and pressures; Temperature range; Wavelength tracking; Optical variables measurement

International Standard Serial Number (ISSN)

0091-3286

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2014 The Authors, All rights reserved.

Creative Commons Licensing

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

Publication Date

01 Jun 2014

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