Optical Technique for the Measurement of High Temperature Material Erosion.
Abstract
A differential Michelson's interferometer capable of measuring path length variation of the order of 0.002 microns has been developed and tested. It has also been proven that this interferometer can be used to measure surface heights on diffuse objects. This ability of the interferometer will be used in profiling surfaces eroded electrically. To generate electrically eroded surfaces, a discharge chamber has been built and tested. Using copper electrodes, glow discharge has been struck and characterized. Work done on an eroded electrode with holographic interferometry shows that overall surface erosion of approximately lambda can be detected using this technique.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1986
- Accession Number
- ADA173192
Entities
People
- J. D. Trolinger
- K. D. Arunkumar
- M. Azzazy