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Surface measuring technique. [using a laser to scan the surface of a reflector
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Spiers Jr., R. B. |
| Copyright Year | 1980 |
| Description | Measurement of the surface contour of a large electrostatically formed concave reflector using a modified Foucault or knife edge test is described. The curve of the actual electrostatically formed reflector surface is compared to a curve representing a reference sphere. Measurements of surface slope and deviation are calculated every 15 cm along the reflector's horizontal and vertical diameters. Characterization of surface roughness on a small scale compared to the laser spot size at the reflector are obtained from the increased laser spot size at a distant projection screen. |
| File Size | 124597 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800010878 |
| Archival Resource Key | ark:/13960/t8wb00714 |
| Language | English |
| Publisher Date | 1980-02-01 |
| Access Restriction | Open |
| Subject Keyword | Launch Vehicles And Space Vehicles Reflectors Electroforming Surface Properties Electromagnetic Measurement Electrostatics Laser Applications Surface Roughness Effects Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
