Projeto e Caracterização de um Sistema Óptico-Mecânico para Acoplamento e Monitoramento da Produção de Biodiesel em Sistema Fechado

Abstract

This paper describes the development and design of an innovative optical-mechanical system for coupling and real-time monitoring of diesel oil production in a closed system, using Raman spectroscopy. The objective was to create a coupling device for fiber optic catheters that optimizes the capture of light scattering from the Raman spectrometer, ensuring readability and signal quality under adverse conditions, with a focus on ease of cleaning and minimization of artifacts. The methodology included design in AutoCAD, using stainless steel and a micro-air chamber with water to mitigate light scattering, and a quartz slide for optical optimization. An Anton Paar OptoTec CORA 5200 portable Raman spectrometer and a Raman probe with seven silica optical fibers were used. The results showed a sketch of the stainless steel guide device and a brass sealing cap. The discussion highlighted the importance of quartz for optimizing signal capture and facilitating cleaning