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Applications of digital correlation to the measurement of velocity by light scattering
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Smart, Anthony E. |
| Organization | The National Aeronautics and Space Administration (NASA) |
| Copyright Year | 1978 |
| Abstract | Scattered light may be studied efficiently by correlation of individual photon detection times. Available photomultipliers and fast digital correlators make these techniques applicable to a variety of subjects. There are many areas where the measurement of velocity is the key to understanding some phenomenon or improving some machine. Measurements which do not modify the situation are highly desirable and optical scattering may often come into this category. In the last ten years, it has become possible to extract good data from very low light levels by observing single photons. Fast correlators have led to new and rapid experiments in the United States and Europe, which have advanced the state of various arts, from molecular biology to the manufacture of aero-engines. The techniques, state-of-the-art, and certain applications of this expanding approach to measurements are outlined. |
| File Size | 1204909 |
| File Format | |
| Alternate Webpage(s) | http://www.archive.org/details/nasa_techdoc_19910074190 |
| Archival Resource Key | ark:/13960/t15m6zg2x |
| Language | English |
| Publisher Date | 1978-11-17 |
| Access Restriction | Open |
| Subject Keyword | Lunar Exploration Lunar Resources Lunar Rocks Lunar Soil Lunar Environment Space Commercialization Space Manufacturing Space Processing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
