Investigation of Holographic Testing Techniques
Abstract
The report discusses holographic schemes for the detection of flaws in honeycomb panels and also describes the development of a method of reducing the sensitivity of holographic interferometry of transparent objects. An interferometric scheme for determining the surface roughness of flat objects is presented, and a planned application of the technique to curved objects is discussed. Recent advances in multiple-frequency holographic contouring are described, and a comparison of holographic and shadow-moire contouring schemes is presented. A computer simulation of acoustical holography and its use for reduction of aberration are also discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1971
- Accession Number
- AD0718386
Entities
People
- Charles M. Vest
- Emmett N. Leith
Organizations
- University of Michigan