Share Email Print
cover

Proceedings Paper

Frequency-division-multiplexed Fabry-Perot interferometric fiber sensors for temperature monitoring in a selective catalytic reduction unit
Author(s): Fabin Shen; Zhengyu Huang; Yizheng Zhu; Michael Coffey; Robert Frank; Gary Pickrell; Anbo Wang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We present the quasi-distributed temperature measurement results in a selective catalytic reduction unit of a power plant by using a frequency-division-multiplexing optical fiber measurement system with eight intrinsic Fabry-Perot interferometric fiber sensors along a single fiber. The sensor was constructed by splicing a section of multimode fiber between single mode fibers. A high resolution swept laser interrogator was used to measure the spectrogram of the reflected light from the sensors, which contains multiple frequency components in wave number domain corresponding to sensors with different cavity lengths. The temperatures were measured by estimating the optical path length of each Fabry-Perot interferometer. Field test results show that the proposed technology can potentially be used in applications of multi-point high temperature sensing.

Paper Details

Date Published: 5 November 2005
PDF: 8 pages
Proc. SPIE 5998, Sensors for Harsh Environments II, 59980H (5 November 2005); doi: 10.1117/12.633894
Show Author Affiliations
Fabin Shen, Virginia Polytechnic Institute and State Univ. (United States)
Zhengyu Huang, Virginia Polytechnic Institute and State Univ. (United States)
Yizheng Zhu, Virginia Polytechnic Institute and State Univ. (United States)
Michael Coffey, EPRI I and C Ctr./Kingston Fossil Plant (United States)
Robert Frank, EPRI I and C Ctr./Kingston Fossil Plant (United States)
Gary Pickrell, Virginia Polytechnic Institute and State Univ. (United States)
Anbo Wang, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 5998:
Sensors for Harsh Environments II
Anbo Wang, Editor(s)

© SPIE. Terms of Use
Back to Top