Dynamic holographic-electronic speckle-pattern interferometry

M. A. Ahmadshahi*, Sridhar Krishnaswamy, S. Nemat-Nasser

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

The development of a nondestructive, full-field, quantitative optical technique, and its feasibility to study dynamic deformations of opaque and diffusively reflecting solids under transient loads, are discussed. The technique involves recording a sequence of dynamically changing two-beam speckle interference patterns (also called holographic speckle patterns) of a rapidly deforming body which is doubly illuminated by a laser light source. The time sequence of speckle patterns is recorded by means of a high-speed camera on an ultra-sensitive 35-mm film. The developed negatives are then digitized by a CCD camera into an image processing system.

Original languageEnglish (US)
Pages (from-to)1-9
Number of pages9
JournalAmerican Society of Mechanical Engineers (Paper)
StatePublished - Dec 1 1993
EventASME Winter Annual Meeting - New Orleans, LA, USA
Duration: Nov 28 1993Dec 3 1993

ASJC Scopus subject areas

  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Dynamic holographic-electronic speckle-pattern interferometry'. Together they form a unique fingerprint.

Cite this