Article | REF: R6210 V2

Characterization of vibrations with holography-based methods

Authors: Pascal PICART, Paul SMIGIELSKI

Publication date: December 10, 2020

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Overview

Français

ABSTRACT

This paper deals with the characterization and measurement of vibrations of structures by interferometric methods based on optical holography.

The first part presents the principle of the various holographic methods that can be found in the literature. The second part deals with the measurement of vibrations generated under several excitation regimes: sinusoidal and controlled, large amplitudes, and shock regimes. The last part of the article is dedicated to the technique of kine-holography.

Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.

Read the article

AUTHORS

  • Pascal PICART: University Professor. Engineer, École Supérieure d'Optique, LAUM CNRS, Le Mans University

  • Paul SMIGIELSKI: Doctor of Science. Engineer, École Supérieure d'Optique, Mulhouse

 INTRODUCTION

The study of vibrations is of great interest in many scientific fields (vibroacoustics, aeroacoustics), in industry (noise reduction, weight reduction of structures) and for bio-imaging (properties of products, in-vivo imaging). Traditionally, laser vibrometers, with or without scanning, are the tools most widely used by experimenters, as they have been technologically mature for several years. However, although they are non-contact and therefore non-intrusive, they cannot directly provide a "one-shot", wide-field and sufficiently resolved image of the vibratory phenomena under study. Among alternative full-field and contactless solutions, three methods coexist in the literature: 3D vision with several cameras and image correlation processing; deflectometry, which is similar to interferometric methods in terms of processing, but requires mirror-quality surfaces; and holography, which is universal in its appeal in various fields such as 3D display, microscopy, tomography, lithography, coronography or metrology.

This booklet is dedicated to the presentation of all vibration measurement methods based on holography. The first part presents the principles of the many holographic methods available in the literature. The second part deals with the measurement of vibrations generated under different excitation regimes: controlled sinusoidal, large amplitude and shock regimes. The last part of the article is dedicated to the cineholography technique. Each section is amply illustrated by a variety of examples, demonstrating the richness and diversity of possible applications for holographic methods. A list of bibliographical references will enable the reader to delve deeper into the subject.

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Non-destructive testing

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Vibration characterization using holographic methods