Velocity sensing interferometer (VISAR) modification
- 1 January 1979
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 50 (1) , 73-78
- https://doi.org/10.1063/1.1135672
Abstract
The VISAR (velocity interferometer system for any reflector) has become a common tool used in experiments where high surface velocities must be measured. A modification that uses previously wasted interferometer light to more than double output signals and to cancel noise is described. Laser power is used more efficiently, VISAR performance in the presence of intense target self-light is improved, and only two data signals are required instead of the usual three or four. Effects of changing light intensity and fringe visibility are eliminated using a novel detection system with a simplified solution for velocity.Keywords
This publication has 4 references indexed in Scilit:
- Analysis of the laser velocity interferometerJournal of Applied Physics, 1975
- Correction to the velocity-per-fringe relationship for the VISAR interferometerJournal of Applied Physics, 1974
- Laser interferometer for measuring high velocities of any reflecting surfaceJournal of Applied Physics, 1972
- An Optical Interferometer Using Polarization Coding to Obtain Quadrature Phase ComponentsReview of Scientific Instruments, 1970