A compact dual-crystal modulated birefringence-measurement system for microgravity applications
| Autor: | Gareth H. McKinley, Jeffrey R. Mackey, Kamal K. Das, Shelley L. Anna |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Physics
Sounding rocket Birefringence business.industry Applied Mathematics System of measurement 90499 Chemical Engineering not elsewhere classified Physics::Optics Polarization (waves) Transverse plane Optics Modulation Fluid dynamics Mueller calculus business Instrumentation Engineering (miscellaneous) FOS: Chemical engineering |
| Zdroj: | Measurement Science and Technology. 10:946-955 |
| ISSN: | 1361-6501 0957-0233 |
| DOI: | 10.1088/0957-0233/10/10/315 |
| Popis: | A compact modulated birefringence-measurement system has been developed for use in microgravity fluid physics applications with non-Newtonian fluids such as polymer solutions. This instrument uses a dual-crystal transverse electro-optical modulator capable of modulation frequencies in excess of 100 MHz. The two crystals are modulated 180° out of phase from each other. The theoretical framework governing the development of this instrument using the Mueller–Stokes polarization matrices is discussed. Several ground-based experiments are performed to compare this system with the theoretical results. Results from this transverse electro-optical modulator-based birefringence-measurement system agree well with the theory. The instrument is also very stable and robust, making it suitable for the extreme acceleration environment to be encountered in a NASA Black Brandt sounding rocket. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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