Wedge cells for refractometry: materials and parameters selection criteria
This work presents the materials and parameters selection criteria of wedge cells for refractometry in the visible range. These cells consist of two right angle prisms facing each other, defining a wedge-shaped cavity where the sample is placed. The refractive index of the sample is determined from...
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Español |
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FIUBA
2020
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| Acceso en línea: | https://elektron.fi.uba.ar/elektron/article/view/85 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=85_oai |
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I28-R145-85_oai2026-02-11 Vázquez, Patricia María Elena Oreglia, Eduardo Victor Ciocci Brazzano, Ligia Veiras, Fracisco Ezequiel Matteo, Claudia Leda Sorichetti, Patricio Anibal 2020-03-18 This work presents the materials and parameters selection criteria of wedge cells for refractometry in the visible range. These cells consist of two right angle prisms facing each other, defining a wedge-shaped cavity where the sample is placed. The refractive index of the sample is determined from the deviation of a light beam that traverses the cell. This model for engineering purposes includes the cell geometry and the refractive indexes of the cell material and the sample. We perform the numerical calculation and ray tracing of the optical system. We also propose polinomial fitting functions in order to simplify the numerical treatment, and as a complement to the complete set of equations. These polynomials give the refractive index of the sample as an explicit function of the deviation angle. An analysis of the approximation errors is also given. Este trabajo presenta criterios de selección de materiales y parámetros de celdas en cuña para refractometría en el rango visible. Estas celdas consisten en dos prismas de ángulo recto enfrentados, que definen una cavidad con forma de cuña entre ellas, en la que se coloca la muestra cuyo índice de refracción se desea medir. Éste se determina a partir de la desviación de un haz luminoso que atraviesa la celda. Este modelo para fines de ingeniería tiene en cuenta la geometría de la celda y los índices de refracción del material de la celda y de la muestra. A partir de allí realizamos el cálculo numérico y trazado de rayos correspondiente al sistema óptico. También proponemos ajustes polinómicos para simplificar el tratamiento numérico, como complemento de las ecuaciones completas. Estos polinomios dan el índice de refracción de la muestra como una función explícita del ángulo de deflexión. Se incluye además el análisis de los errores de la aproximación. application/pdf text/html https://elektron.fi.uba.ar/elektron/article/view/85 10.37537/rev.elektron.4.1.85.2020 spa FIUBA https://elektron.fi.uba.ar/elektron/article/view/85/186 https://elektron.fi.uba.ar/elektron/article/view/85/195 Derechos de autor 2019 Patricia María Elena Vázquez, Eduardo Victor Oreglia, Ligia Ciocci Brazzano, Fracisco Ezequiel Veiras, Claudia Leda Matteo, Patricio Anibal Sorichetti Elektron Journal; Vol. 4 No. 1 (2020); 8-13 Revista Elektron; Vol. 4 Núm. 1 (2020); 8-13 Revista Elektron; v. 4 n. 1 (2020); 8-13 2525-0159 2525-0159 optical instrumentation refractometry metrology instrumentación óptica refractometría metrología Wedge cells for refractometry: materials and parameters selection criteria Celdas en cuña para refractometría: criterios de selección de materiales y parámetros info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=85_oai |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-145 |
| collection |
Repositorio Digital de la Universidad de Buenos Aires (UBA) |
| language |
Español |
| orig_language_str_mv |
spa |
| topic |
optical instrumentation refractometry metrology instrumentación óptica refractometría metrología |
| spellingShingle |
optical instrumentation refractometry metrology instrumentación óptica refractometría metrología Vázquez, Patricia María Elena Oreglia, Eduardo Victor Ciocci Brazzano, Ligia Veiras, Fracisco Ezequiel Matteo, Claudia Leda Sorichetti, Patricio Anibal Wedge cells for refractometry: materials and parameters selection criteria |
| topic_facet |
optical instrumentation refractometry metrology instrumentación óptica refractometría metrología |
| description |
This work presents the materials and parameters selection criteria of wedge cells for refractometry in the visible range. These cells consist of two right angle prisms facing each other, defining a wedge-shaped cavity where the sample is placed. The refractive index of the sample is determined from the deviation of a light beam that traverses the cell. This model for engineering purposes includes the cell geometry and the refractive indexes of the cell material and the sample. We perform the numerical calculation and ray tracing of the optical system. We also propose polinomial fitting functions in order to simplify the numerical treatment, and as a complement to the complete set of equations. These polynomials give the refractive index of the sample as an explicit function of the deviation angle. An analysis of the approximation errors is also given. |
| format |
Artículo publishedVersion |
| author |
Vázquez, Patricia María Elena Oreglia, Eduardo Victor Ciocci Brazzano, Ligia Veiras, Fracisco Ezequiel Matteo, Claudia Leda Sorichetti, Patricio Anibal |
| author_facet |
Vázquez, Patricia María Elena Oreglia, Eduardo Victor Ciocci Brazzano, Ligia Veiras, Fracisco Ezequiel Matteo, Claudia Leda Sorichetti, Patricio Anibal |
| author_sort |
Vázquez, Patricia María Elena |
| title |
Wedge cells for refractometry: materials and parameters selection criteria |
| title_short |
Wedge cells for refractometry: materials and parameters selection criteria |
| title_full |
Wedge cells for refractometry: materials and parameters selection criteria |
| title_fullStr |
Wedge cells for refractometry: materials and parameters selection criteria |
| title_full_unstemmed |
Wedge cells for refractometry: materials and parameters selection criteria |
| title_sort |
wedge cells for refractometry: materials and parameters selection criteria |
| publisher |
FIUBA |
| publishDate |
2020 |
| url |
https://elektron.fi.uba.ar/elektron/article/view/85 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=85_oai |
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