FIFI-LS diffraction grating vibration on SOFIA
| Autor: | Maureen L. Savage, Walfried Raab, Norbert Geis, Christof Iserlohe, Simon Beckmann, Rainer Hoenle, Fabio Fumi, Christian Fischer, Leslie W. Looney, Felix Rebell, Albrecht Poglitsch, Randolf Klein, Alfred Krabbe, Aaron Bryant, Sebastian Colditz |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Spectrometer business.industry Image quality Physics::Optics 02 engineering and technology Grating 021001 nanoscience & nanotechnology 01 natural sciences 010309 optics Vibration Wavelength Acceleration Optics Far infrared 0103 physical sciences 0210 nano-technology business Diffraction grating |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| Popis: | FIFI-LS (the Field Imaging Far Infrared Line Spectrometer for SOFIA) was successfully commissioned in 2014 during six flights on SOFIA. The observed wavelengths are set by rotating reflective gratings. In flight these gratings and their rotating mechanisms are exposed to vibrations. To quantify these vibrations, an acceleration sensor was placed on the exterior of the instrument. Simultaneously, the angle sensor of the grating was read out to analyze the movement of the grating. Based on this data, lab measurements were conducted to evaluate the effect of the vibrations on the image quality of FIFI-LS. The submitted paper will present the measured data and show the results of the analysis. |
| Databáze: | OpenAIRE |
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