Accession Number : AD0716861

Title :   A Description and Analysis of the Wollaston Prism Schlieren-Interferometer,

Corporate Author : RUTGERS - THE STATE UNIV NEW BRUNSWICK N J DEPT OF MECHANICAL AND AEROSPACE ENGINEERING

Personal Author(s) : Small,Richard D.

Report Date : JUL 1970

Pagination or Media Count : 36

Abstract : A Wollaston prism Schlieren-Interferometer is described and analyzed. This Schlieren-Interferometer is a standard single pass Schlieren system with the knife edge replaced by a polarizer-Wollaston prism-analyzer combination. The analysis of the optical system shows that a fringe shift on the viewing screen is related to a density change. The effects of the polarizer, Wollaston prism, and analyzer are included in the analysis. The double image, which is characteristic of a Wollaston prism, and its influence on interferogram interpretation is discussed. It is shown that the fringe shift may be related to a density gradient under certain special conditions. The experimental procedures developed for the use of this instrument are briefly reviewed. (Author)

Descriptors :   (*INTERFEROMETERS, DESIGN), (*SUPERSONIC FLOW, VISUAL PERCEPTION), PRISMS(OPTICS), LASERS, OPTICAL EQUIPMENT, PERFORMANCE(ENGINEERING), SYSTEMS ENGINEERING, GAS LASERS

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE