Liquid Refractive Index Measurement Based on Inverse Raytracing Using an Optical Angle Sensor
| Autor: | Kozo Ohtani, Mitsuru Baba |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
0209 industrial biotechnology Light spot business.industry 020208 electrical & electronic engineering Physics::Optics Inverse Ranging 02 engineering and technology 020901 industrial engineering & automation Optics 0202 electrical engineering electronic engineering information engineering Ray tracing (graphics) business Refractive index |
| Zdroj: | 2019 12th Biomedical Engineering International Conference (BMEiCON). |
| DOI: | 10.1109/bmeicon47515.2019.8990221 |
| Popis: | The refractive index of a solution correlates closely with its concentration. Estimating the concentration of a solution from its refractive index is an extremely important technique in a wide variety of fields ranging from medicine to food and industry. In this study, we propose a non-contact measuring method for obtaining the refractive index of a solution using an optical angle sensor. Our approach is based on an inverse ray tracing technique. We formulate inverse ray tracing expressions for simultaneous measurement of the refractive index of a solution and its level. We construct a prototype, and examine the validity of the proposed method. |
| Databáze: | OpenAIRE |
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