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Catadioptric Optics For Laser Doppler Velocimeter Applications
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Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781729190104 Total Pages :32 pages Book Rating :4.1/5 (91 download)
Book Synopsis Catadioptric Optics for Laser Doppler Velocimeter Applications by : National Aeronautics and Space Adm Nasa
Download or read book Catadioptric Optics for Laser Doppler Velocimeter Applications written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-24 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the design of a laser velocimeter system, attention must be given to the performance of the optical elements in their two principal tasks: focusing laser radiation into the probe volume, and collecting the scattered light. For large aperture applications, custom lens design and fabrication costs, long optical path requirements, and chromatic aberration (for two color operation) can be problematic. The adaptation of low cost Schmidt-Cassegrain astronomical telescopes to perform these laser beam manipulation and scattered light collection tasks is examined. A generic telescope design is analyzed using ray tracing and Gaussian beam propagation theory, and a simple modification procedure for converting from infinite to near unity conjugate ratio operation with image quality near the diffraction limit was identified. Modification requirements and performance are predicted for a range of geometries. Finally, a 200-mm-aperture telescope was modified for f/10 operation; performance data for this modified optic for both laser beam focusing and scattered light collection tasks agree well with predictions. Dunagan, Stephen E. Ames Research Center RTOP 505-61-51
Book Synopsis Catadioptric Optics for Laser Doppler Velocimeter Applications by : Stephen Emil Dunagan
Download or read book Catadioptric Optics for Laser Doppler Velocimeter Applications written by Stephen Emil Dunagan and published by . This book was released on 1989 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Laser Doppler Velocimeter to Chemical Vapor Laser System by : Luther R. Gartrell
Download or read book Application of Laser Doppler Velocimeter to Chemical Vapor Laser System written by Luther R. Gartrell and published by . This book was released on 1993 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Papers on Laser Doppler Velocimetry by : Ronald J. Adrian
Download or read book Selected Papers on Laser Doppler Velocimetry written by Ronald J. Adrian and published by SPIE-International Society for Optical Engineering. This book was released on 1993 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1992 with total page 1210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatial Filtering Velocimetry by : Yoshihisa Aizu
Download or read book Spatial Filtering Velocimetry written by Yoshihisa Aizu and published by Springer. This book was released on 2006-01-04 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The invention of lasers in the early 1960s enhanced the rapid development of optoelectronics which had introduced various optical measurement methods. A typical example of the methods is found in measurements of velocity. It is well recognized that optical velocity measuring methods have important advantages, such as noncontacting and nondisturbing operations, over c- ventional methods employed previously. These fundamental advantages are indicated by the enormous research e?ort which has gone into their devel- ment for many years. One of the optical methods proposed and studied to measure the velocity is laser Doppler velocimetry which was proposed in the early 1960s and extensively studied by many investigators and is at present applied to practical uses. Another is spatial ?ltering velocimetry which was also proposed in the early 1960s and studied by a number of investigators. In comparison with laser Doppler velocimetry, spatial ?ltering velocimetry had not received much attention from investigators but was studied steadily by several research groups mainly in Japan and is now practically used in various ?elds of engineering. Several important books on laser Doppler velocimetry have already been published, but there has been no book on spatial ?ltering velocimetry. This book is the ?rst contribution to spatial ?ltering velocimetry. Therefore, the Introduction of Chapter 1 provides in detail a historical review of spatial ?ltering velocimetry, relating it to other optical methods and discussing its practical relevance. In the book following Chap.
Book Synopsis Journal of Current Laser Abstracts by :
Download or read book Journal of Current Laser Abstracts written by and published by . This book was released on 1990 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SPIE ... Publications Index written by and published by . This book was released on 1990 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a New Laser Doppler Velocimeter for the Ames High Reynolds Channel No. 2 by :
Download or read book Development of a New Laser Doppler Velocimeter for the Ames High Reynolds Channel No. 2 written by and published by . This book was released on 1985 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Doppler Shift Velocimeter by : F. N. Weber (Jr.)
Download or read book Laser Doppler Shift Velocimeter written by F. N. Weber (Jr.) and published by . This book was released on 1972 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1990-03 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781729178720 Total Pages :26 pages Book Rating :4.1/5 (787 download)
Book Synopsis Application of Laser Doppler Velocimeter to Chemical Vapor Laser System by : National Aeronautics and Space Adm Nasa
Download or read book Application of Laser Doppler Velocimeter to Chemical Vapor Laser System written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-24 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: A laser Doppler velocimeter (LDV) system was used to measure iodide vapor flow fields inside two different-sized tubes. Typical velocity profiles across the laser tubes were obtained with an estimated +/-1 percent bias and +/-0.3 to 0.5 percent random uncertainty in the mean values and +/-2.5 percent random uncertainty in the turbulence-intensity values. Centerline velocities and turbulence intensities for various longitudinal locations ranged from 13 to 17.5 m/sec and 6 to 20 percent, respectively. In view of these findings, the effects of turbulence should be considered for flow field modeling. The LDV system provided calibration data for pressure and mass flow systems used routinely to monitor the research laser gas flow velocity. Gartrell, Luther R. and Hunter, William W., Jr. and Lee, Ja H. and Fletcher, Mark T. and Tabibi, Bagher M. Langley Research Center RTOP 505-59-54-03...
Download or read book Laser Anemometry written by and published by . This book was released on 1995 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Optics written by and published by . This book was released on 1998 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Tech Briefs written by and published by . This book was released on 1991 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
