Work

Simultaneous measurement of temperature and pressure with cascaded extrinsic Fabry–Perot interferometer and intrinsic Fabry–Perot interferometer sensors

Year: 2014

Type: article

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 6.895×105 Pa and a temperature range from 20°C to 700°C.

Source: Optical Engineering

DOI: 10.1117/1.oe.53.6.067101

Authors: Yinan Zhang, Jie Huang, Xinwei Lan, Lei Yuan, Hai Xiao

Institutions: Missouri University of Science and Technology, Clemson University

Language: English

Topic: Advanced Fiber Optic Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: U.S. Department of Energy, National Energy Technology Laboratory

Awards: MICRO-STRUCTURED SAPPHIRE FIBER SENSORS FOR SIMULTANEOUS MEASUREMENTS OF HIGH TEMPERATURE AND DYNAMI, G8180364994