Accession Number:

AD0744924

Title:

Point Measurement of Density by Laser Raman Scattering.

Descriptive Note:

Technical rept.,

Corporate Author:

PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS

Personal Author(s):

• Leonard,Donald A.

Report Date:

1972-06-01

Pagination or Media Count:

44.0

Abstract:

The report describes an experimental feasibility investigation of the use of Raman scattering as a means of making point measurements of density in three-dimensional flows, such as, in turbocompressor machinery. A 3371 A ultraviolet pulsed nitrogen laser was used as the laser source. The major problem area considered was the ability to make measurements close to the walls and in confined internal geometries. The density in a flow past a heated cylinder was measured by both the Raman technique and a standard interferometer and the two method were shown to agree. Author

Descriptors:

• (*THREE DIMENSIONAL FLOW
• DENSITY)
• (*RAMAN SPECTROSCOPY
• FLOW VISUALIZATION)
• GAS LASERS
• NITROGEN

Subject Categories:

• Test Facilities, Equipment and Methods
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE