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Dust adhesion on viking lander camera window
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Singh, J. J. |
| Copyright Year | 1978 |
| Description | Studies of dust impingement on a duplicate Viking Lander camera window indicated the possibility of window obscuration after several days of exposure even at low dust concentration levels. As a result the following corrective measures were recommended: (1) The clearance between the housing surface and the camera post should be eliminated by using an appropriately designed plastic skirt: (2) The three horizontal ledges below the window inside the cavity act as bases for pile-up of dust that slides down the window surface; they should be replaced by a single inclined plane down which the dust will slide and fall out on the ground: (3) Adhered dust on the window surface can be removed by high pressure CO2 jets directed down against the window; the amount of CO2 gas needed for the entire mission can be carried in a 3 1/2-inch diameter sphere equipped with a remotely programable valve. These measures were incorporated in the design of the lander camera system. The continued high quality of photographs transmitted from the Viking spacecraft several months after landing attests to their effectiveness. |
| File Size | 6781334 |
| Page Count | 34 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780025464 |
| Archival Resource Key | ark:/13960/t5z65b62m |
| Language | English |
| Publisher Date | 1978-09-01 |
| Access Restriction | Open |
| Subject Keyword | Dust Viewing Windows Apertures Air Jets Carbon Dioxide Viking Lander Spacecraft Cameras Mars Surface Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
