| タイトル | Remote measurement of ice thickness on the shuttle external tank surface |
| 本文（外部サイト） | http://hdl.handle.net/2060/19900015268 |
| 著者（英） | Singh, Jag J. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1990-06-01 |
| 言語 | eng |
| 内容記述 | A passive technique is proposed for remote measurement of thickness of the ice layer formed on the external tank surface of the Shuttle during the T-2 hours period before launch. It is based on the comparison of the ratios of the intensities of three preselected near-IR wavelength bands scattered from the (test spot) and a neighboring (reference spot) on the tank surface. The Shuttle is uniformly illuminated by a battery of strategically located solar simulator lamps and banks of incadescent lamps during prelaunch period. Thus, there should be adequate radiation in the three selected bands incident on the external tank surface during the test period. It is planned to conduct a feasibility study of the proposed technique before recommending it to the KSC/SSC teams for adoption. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 90N24584
NASA-TM-102667
NAS 1.15:102667 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/137492 |
