Simultaneous Measurement of Partial Pressure of O-2 and CO2 using Hybrid interferometer

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2012

Autores

Paula A R Tafulo (Autor) Outra; Coelho, L (Autor) Outra; Jorge, PAS (Autor) FCUP; Santos, JL (Autor) FCUP; Kay Schuster (Autor) Outra; Jens Kobelke (Autor) Outra; Frazao, O (Autor) FCUP

Ata de Conferência Internacional

Título: 22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3

22nd International Conference on Optical Fiber Sensors (OFS)

Beijing, PEOPLES R CHINA, OCT 15-19, 2012

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia do ambiente

Outras Informações

ID Authenticus: P-002-EER

DOI: 10.1117/12.970474

Abstract (EN): In this work, a hybrid interferometer for simultaneous measurement of the partial pressures of O-2 and CO2 mixtures is reported. The sensing head consist in two different interferometers based on a Fabry-Perot cavity and a modal interference configuration. The intrinsic FP cavity was created by splicing a single mode fiber (SMF28) with a graded index fiber section that was then subjected to chemical etching creating a cavity. The second interferometer is based on a splice of a pure silica tube in series with the Fabry-Perot. Due to the design, different sensitivities are achieved for the pressure inducing refractive index changes of each gas. The rms deviations were found to be +/- 0.079 kPa and +/- 0.029 kPa for CO2 and O-2 partial pressure measurements, respectively.

Idioma: Inglês

Tipo (Avaliação Docente): Científica