Accession Number : ADA182182

Title :   Optical Technique for the Measurement of High Temperature Material Erosion.

Descriptive Note : Annual rept. 1 Apr 86-31 Mar 87,

Corporate Author : SPECTRON DEVELOPMENT LABS INC COSTA MESA CA

Personal Author(s) : Arunkumar,K A ; Trolinger,J D

PDF Url : ADA182182

Report Date : Mar 1987

Pagination or Media Count : 33

Abstract : Holographic Interferometry was attempted as a means of monitoring surface erosion and rejected because of large signal-to-noise problems. A new type of common path diffuse point interferometer has been developed to profile (electrode) surfaces. Initial studies show that the stability of this interferometer is at least two orders of magnitude better than what has been seen with standard Michelson's interferometer. Some measurements carried out with this interferometer are reported here. Keywords: Diffuse point interferometer, Holographic interferometry, Glow discharge, Vacuum chamber, Surface erosion, Common path interferometer, Aluminum, High temperature, Test methods, Erosion.

Descriptors :   *INTERFEROMETERS, *EROSION, *HIGH TEMPERATURE, *OPTICS, *HOLOGRAPHY, ALUMINUM, DIFFUSION, GLOW DISCHARGES, INTERFEROMETRY, MATERIALS, MONITORING, OPTICS, PATHS, SURFACES, TEST METHODS, VACUUM CHAMBERS

Subject Categories : Holography

Distribution Statement : APPROVED FOR PUBLIC RELEASE