Accession Number : ADA307743
Title : Gas-Dynamic Investigations in a Shock Tube using a Highly Sensitive Interferometer,
Corporate Author : INSTITUT FRANCO-ALLEMAND DE RECHERCHES SAINT-LOUIS (FRANCE)
Personal Author(s) : Smeets, G. ; George, A.
PDF Url : ADA307743
Report Date : 16 APR 1996
Pagination or Media Count : 36
Abstract : The laser-interferometer described in the technical report ISL T 21/70 underwent development. Utilizing a 15 mW He-Ne laser at 6328 angstroms, and a PIN photodiode as a detector, optical path changes can now be measured with an uncertainty of 0.1 angstroms and a resolution in time of about 20 ns. Various experiments on shock tube arrangements were conducted to demonstrate the wide range of applicability and the advantages of this technique.
Descriptors : *GAS DYNAMICS, *HELIUM NEON LASERS, *INTERFEROMETERS, *SHOCK TUBES, OPTICS, PATHS, SENSITIVITY, RANGE(EXTREMES), PHOTODIODES, PINS.
Subject Categories : Lasers and Masers
Distribution Statement : APPROVED FOR PUBLIC RELEASE