رسالة جامعية
Redes de Bragg padrão e regenerada em fibra ótica: produção e análise do envelhecimento térmico para aplicações em baixas e em altas temperaturas ; Standard and regenerated fiber Bragg gratings: production and analysis of the thermal aging at low and high temperatures applications
| العنوان: | Redes de Bragg padrão e regenerada em fibra ótica: produção e análise do envelhecimento térmico para aplicações em baixas e em altas temperaturas ; Standard and regenerated fiber Bragg gratings: production and analysis of the thermal aging at low and high temperatures applications |
|---|---|
| المؤلفون: | Sato, Karoline Akemi |
| المساهمون: | Oliveira, Valmir de, orcid:0000-0001-5731-6127, http://lattes.cnpq.br/1276189869170012Test, Kalinowski, Hypolito Jose, orcid:0000-0003-1226-4903, http://lattes.cnpq.br/6560372925252581Test, Abe, Ilda, orcid:0000-0003-1142-8996, http://lattes.cnpq.br/6430809426743411Test, Karam, Leandro Zen, orcid:0000-0003-0008-1851, http://lattes.cnpq.br/3098825752151765Test, Dreyer, Uilian José, orcid:0000-0001-9720-4410, http://lattes.cnpq.br/6015434912116988Test |
| بيانات النشر: | Universidade Tecnológica Federal do Paraná Curitiba Brasil Programa de Pós-Graduação em Engenharia Elétrica e Informática Industrial UTFPR |
| سنة النشر: | 2022 |
| المجموعة: | Universidade Tecnológica Federal do Paraná (UTFPR): Repositório Institucional (RIUT) |
| مصطلحات موضوعية: | Fibras ópticas, Detectores ópticos - Vida útil, Detectores - Efeito da temperatura, Análise espectral, Optical fibers, Optical detectors - Service life, Detectors - Effect of temperature on, Spectrum analysis, CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA, Engenharia Elétrica |
| الوصف: | It is important that the signal reflected intensity by optical sensors has a good long-term stability, but there are sparse researches in this area. Thus, the main objective of this work is to exhaustively analyze the thermal aging of FBG (Fiber Bragg Grating) and RFBG (Regenerated Fiber Bragg Grating) sensors operated at low and high temperatures, for long periods of time. For the analysis at low temperatures two optical sensors were produced, one of the standard FBG type and the other of the RFBG type, for environment temperature measurement between 0 °C and 40 °C. Weekly, reflection spectra of the two sensors were obtained using an optical sensing interrogator for 151 weeks. With the aid of a multimeter connected to a type-K thermocouple, temperature measurements were obtained as benchmark. When evaluating the reliability (precision and accuracy) of the measurements obtained, no discrepancy greater than 2 °C was observed between the reading of the thermocouple and the FBG and RFBG sensors, eventually being within the error range of the multimeter, which has a resolution of 1 °C associated with the resolution of the optical sensing interrogator, with the exception of just four spot measurements. In addition, it was found that the lifespan of the regenerated sensor (RFBG) is 20% longer than the sensor that was not regenerated (FBG). For the analysis at high temperatures five optical sensors of the RFBG type were produced to measure temperatures between 600 °C and 900 °C. The sensors were exposed to these high temperatures in increasing and decreasing way with steps of 50 °C or 100 °C, remaining 10 days at each temperature level to characterize the gratings at different levels. The reflection spectra of the RFBG optical sensors were obtained daily, during the 10-days cycles at each temperature level or until the total vanishing of the RFBG under test, with the aid of a type-K thermocouple connected to the furnace control as benchmark. By evaluating the influence of temperature on the sensors durability during ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| العلاقة: | SATO, Karoline Akemi. Redes de Bragg padrão e regenerada em fibra ótica: produção e análise do envelhecimento térmico para aplicações em baixas e em altas temperaturas. 2022. Tese (Doutorado em Engenharia Elétrica e Informática Industrial) - Universidade Tecnológica Federal do Paraná, Curitiba, 2022.; http://repositorio.utfpr.edu.br/jspui/handle/1/30314Test |
| الإتاحة: | http://repositorio.utfpr.edu.br/jspui/handle/1/30314Test |
| حقوق: | openAccess ; http://creativecommons.org/licenses/by-nc-sa/4.0Test/ |
| رقم الانضمام: | edsbas.3C4825E0 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |