Passive thermal control of a multilayer filter for space-based solar observations.
Abstract
Temperature distributions inside multilayer filters are often required to assess performance. This subject is rarely treated in the literature. Guidelines were developed that can be used to calculate a thermal model for various applications. In this study the guidelines are applied to an optical filter. This filter, which is not actively thermally controlled, is the front element in a space experiment devoted to the observation of solar intensity fluctuations. Temperature distributions were calculated for different designs. The final design minimizes temperature gradients, as well as degradation effects due to UV and particle radiation. The effect of space exposure on temperature distributions inside the filter is also addressed.
- Publication:
-
Optical Engineering
- Pub Date:
- August 1992
- DOI:
- 10.1117/12.58714
- Bibcode:
- 1992OptEn..31.1715A
- Keywords:
-
- Conductive Heat Transfer;
- Optical Filters;
- Radiative Heat Transfer;
- Spaceborne Astronomy;
- Temperature Control;
- Thermal Analysis;
- European Space Agency;
- Software Tools;
- Solar Flux;
- Solar Observatories;
- Temperature Distribution;
- Spacecraft Instrumentation