Acousto Optical Tunable Filter
Mostrando 1-3 de 3 artigos, teses e dissertações.
-
1. Desenvolvimento de um espectometro de emissão para a região do infravermelho proximo / Development of an emission spectrometer for the near infrared region
Despite the wide analytical application of near infrared (NIR) spectroscopy, there are few works in litetature about near infrared emission spectroscopy (NIRES) or its exploitation for analytical purposes. This work describes a development of a new NIRES instrument based on an acousto-optical tunable filter (AOTF) as wavelength selector. The instrument is al
Publicado em: 2006
-
2. Use of two-dimensional correlation spectroscopy and construction and evaluation of a near-infrared spectropolarimeter / Uso da espectroscopia de correlação bidimensional (2D) e construção e avaliação de um espectropolarímetro para a região do infravermelho próximo (NIR)
The two-dimensional correlation spectroscopy was used in this work as a tool for spectral variable selection in the near-infrared (NIR) region aiming the determination of the following quality parameters of gasoline: ethanol content, MON (Motor Octane Number) and RON (Research Octane Number). To achieve this objective, it was developed a flow system to autom
Publicado em: 2006
-
3. Desenvolvimento de metodologias analiticas utilizando espectroscopia visivel e infravermelho proximo
This work describes the development of analytical methodologies using visible and near infrared spectroscopy. In the visible range a new method for determination of color index of sugars (ICUMSA) produced for exportation was developed. Secondarily, a multi- channel spectrophotometer was constructed employing a diode array detector EGG-Reticon - RL 1024. The
Publicado em: 1999