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Focused laser doppler velocimeter
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Krause, M. C. Keene, W. H. Campbell Jr., R. B. Huffaker, R. M. Jeffreys, H. B. Jelalian, A. V. Lawrence, T. R. Dahm, W. K. Bilbro, J. W. |
| Copyright Year | 1976 |
| Description | A system for remotely measuring velocities present in discrete volumes of air is described. A CO2 laser beam is focused by a telescope at such a volume, a focal volume, and within the focusable range, near field, of the telescope. The back scatter, or reflected light, principally from the focal volume, passes back through the telescope and is frequency compared with the original frequency of the laser, and the difference frequency or frequencies represent particle velocities in that focal volume. |
| File Size | 606744 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770003551 |
| Archival Resource Key | ark:/13960/t1qg3gx7t |
| Language | English |
| Publisher Date | 1976-10-05 |
| Access Restriction | Open |
| Subject Keyword | Remote Sensors Laser Doppler Velocimeters Atmospheric Turbulence Light Scattering Wind Measurement Telescopes Frequency Distribution Optical Radar Wave Reflection Carbon Dioxide Lasers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
