Share Email Print
cover

Proceedings Paper

High-speed interferometric measurement of aerodynamic phenomena
Author(s): Dean Shough; Osuk Y. Kwon; David F. Leary
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The cross-sections of high-speed aerodynamic phenomena are presently measured by means of a system that interferometrically ascertains optical path length changes with high spatial resolution. Attention is given to the optical disturbance through an aerocurtain, and to the shock wave produced by a hypersonic projectile. While the slowest repetition rate of the laser, camera, and data recorder determines the time-frame rate, the combination of the camera and data recorder determines the spatial resolution. The technique is the spatial equivalent of phase-shifting interferometry. The real-time hardware employed is discussed.

Paper Details

Date Published: 1 May 1990
PDF: 10 pages
Proc. SPIE 1221, Propagation of High-Energy Laser Beams Through the Earth's Atmosphere, (1 May 1990); doi: 10.1117/12.18359
Show Author Affiliations
Dean Shough, Lockheed Palo Alto Research Lab. (United States)
Osuk Y. Kwon, Lockheed Palo Alto Research Lab. (United States)
David F. Leary, Lockheed Palo Alto Research Lab. (United States)


Published in SPIE Proceedings Vol. 1221:
Propagation of High-Energy Laser Beams Through the Earth's Atmosphere
Peter B. Ulrich; LeRoy E. Wilson, Editor(s)

© SPIE. Terms of Use
Back to Top