| タイトル | Cryogenic Shutter Mechanism |
| 著者（英） | Magner, Thomas J.; Barney, Richard D. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1989-10-01 |
| 言語 | eng |
| 内容記述 | Electromagnetic shutter mechanism operates at ambient and cryogenic temperatures to shield optical element, such as mirror, filter, polarizer, beam splitter, or detector, from external light and radiation in cryogenic Dewar equipped with window for optical evaluation. Shutter mechanism in Dewar container alternately shields and exposes optical element as paddle rotates between mechanical stops. Mounted on cold plate of liquid-helium reservoir. Paddle, shaft, and magnet constitutes assembly rotated by electromagnetic field on coil. |
| NASA分類 | PHYSICAL SCIENCES |
| レポートNO | 89B10503
GSC-13189 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/367959 |
|
