Download or read book Real time Laser Holographic Interferometry for Aerodynamics written by and published by . This book was released on 1987 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Technique for Obtaining Improved Real time Holographic Interferometric Data Using Pulse Modulated Illumination written by Frank D. Adams and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculations and experiments were performed to show that the fringe patterns on a vibrating structure, as observed using real-time holographic interferometry, has a substantially increased contrast ratio if the laser illumination is amplitude modulated by a sequence of pulses which are synchronized with the vibration. The time and effort required to obtain interferometric data using this method is an order of magnitude less than that needed when using time-average holographic interferograms. Potential applications include experimental studies of fatigue damage, crack detection and propagation, flaw detection in composite and honeycomb structures as well as vibration analysis of structural members.

Download or read book Holographic Interferometry written by Pramod K. Rastogi and published by Springer. This book was released on 2013-04-17 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Holographic Interferometry provides a valuable and up-to-date source of information in the rapidly expanding field. The eight specialists` contributions cover the principles and methods currently in use. The scope of the book has been limited to the study of opaque object and ample space has been devoted to a comprehensive treatment of the phenomena of fringe formation, with a particular emphasis on the quantitative evaluation of the holographic interference fringe patterns. The emergence of computer-aided fringe analysis and phase-shifting techniques have simplified considerably the quantative real-time measurements of object shapes and deformations. The last two chapters provide a reasonably detailedoverview of full-field holographic methods for the measurement of shapes, displacements, dervatives, difference displacements and vibrations.

Download or read book Holographic Interferometry written by Charles M. Vest and published by Wiley-Interscience. This book was released on 1979 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unified, comprehensive, self-contained treatment of theory, practice, and application, including related coherent optical techniques. Emphasizes quantitative evaluation of holographic interferograms of both opaque and transparent objects, explaining how tools such as the laser and holography are being applied to present-day measurement problems. Applies clear, simple, physical reasoning to present practical information and data; circumvents complicated mathematics wherever possible. Includes over 700 cited references, numerous line drawings and photographs, and several useful tables and equations relating optical data to physical properties.

Download or read book Selected Papers on Holographic Interferometry written by R. S. Sirohi and published by SPIE-International Society for Optical Engineering. This book was released on 2001 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of holographic interferometry are so vast that they are limited only by the imagination of the researchers. This collection represents a variety of HI applications, from micro-crack detection in ancient paintings to holographic testing of nuclear technology.

Download or read book Holographic Interferometry in Experimental Mechanics written by Yuri I. Ostrovsky and published by Springer. This book was released on 2013-06-29 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph deals with diverse applications of holographic interferome try in experimental solid mechanics. Holographic interferometry has experienced a development of twenty years. It has enjoyed success and suffered some disappointments mainly due to early overestimation of its potential. At present, development of holo graphic interferometry is progressing primarily as a technique for quantita tive measurements. This is what motivated us to write this book - to ana lyze the quantitative methods of holographic interferometry. The fringe patterns obtained in holographic interferometry are graphi cally descriptive. In the general case, however, because they contain infor mation on the total vectors of displacement for points on the surface of a stressed body, the interpretation of these interferograms is much more complicated than in typical conventional interferometry. In addition, the high sensitivity of the method imposes new requirements on the loading of the objects under study. New approaches to designing loading fixtures are needed in many cases to ensure the desired loading conditions. The wealth of information obtained in holographic interferometry necessitates the use of modern computational mathematics. Therefore, practical implementation of the various methods of holographic interferometry must overcome sub stantial difficulties requiring adequate knowledge in diverse areas of science such as coherent optics, laser technology, mechanics, and applied mathe matics. Experimental methods play a significant role in solid mechanics.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantitative Applications of Holographic Interferometry to Wind tunnel Testing written by Tse-Fou Zien and published by . This book was released on 1974 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Holographic interferometry was successfully applied to a large-scale wind tunel (40-cm x 40-cm test section) experiment on a three-dimensional flow field. The laser interferometer was set up in a schlieren bench with a pulsed-ruby laser as the light source. Both the object beam and the reference beam were collimated. The conventional double-exposure, off-axis operation was used to produce interferograms...

Download or read book Experimental Aerodynamics written by Stefano Discetti and published by CRC Press. This book was released on 2017-03-16 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental Aerodynamics provides an up to date study of this key area of aeronautical engineering. The field has undergone significant evolution with the development of 3D techniques, data processing methods, and the conjugation of simultaneous measurements of multiple quantities. Written for undergraduate and graduate students in Aerospace Engineering, the text features chapters by leading experts, with a consistent structure, level, and pedagogical approach. Fundamentals of measurements and recent research developments are introduced, supported by numerous examples, illustrations, and problems. The text will also be of interest to those studying mechanical systems, such as wind turbines.

Download or read book Holographic Interferometry written by Gregory R. Toker and published by CRC Press. This book was released on 2017-12-19 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transparent in the visible range, phase objects can be studied in the optical range using holographic interferometry. Typically, the holograms are recorded on high-resolving-power holographic photo materials, but a lower spatial resolution is sufficient for successful research in many scientific applications. Holographic Interferometry: A Mach–Zehnder Approach offers practical guidance to research scientists and engineers using Mach–Zehnder holographic interferometry methods to study phase objects in the laboratory. The Mach–Zehnder approach allows the use of standard photographic film and electronic CCD/CMOS sensors with low resolving power, making it a simpler and more affordable option for testing many types of phase objects. This book demonstrates how to use standard photographic film for the optical recording and reconstruction of Mach–Zehnder holograms. It also illustrates techniques for using CCD/CMOS cameras to digitally record Mach–Zehnder holograms/interferograms of transparent objects. Bringing together original research and information scattered throughout existing literature, this book focuses on the holographic reference beam and shearing interferometry methods. In particular, it looks at how these methods and optical schemes can be directly applied to testing aerodynamic flows, as well as to plasmas, shocks, and waves in noncoherent laser–matter interactions. Numerous reconstructed and classic interferograms, deflectograms, and Schlierengrams illustrate the material, helping readers develop and design their own optimal optical scheme and choose applicable details to apply the approach. Describing methods in a mathematically simple and accessible way, this book is also suitable for graduate students in the fields of aerospace engineering and optics, as well as those in laser, thermal, and plasma physics.

Download or read book A Simplified Holographic interferometry Technique for Real time Flow Visualization and Analysis written by Sheila Ann T. Long and published by . This book was released on 1974 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Papers on Holographic Interferometry written by Klaus D. Hinsch and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: SPIE Milestones are collections of seminal papers from the world literature covering important discoveries and developments in optics and photonics.

Download or read book Lasers and Holography written by Prakash Chandra Mehta and published by World Scientific. This book was released on 1993 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive book on the fundamental aspects of lasers and holography. It represents a self-contained treatment of the basic and state-of-the-art topics on the two subjects in a single volume. The book covers the latest technological and scientific developments and major advances that have taken place in the last decade and includes recent applications in medicine, information processing, interconnects and nondestructive testing.It is intended to fill the need of both researchers and graduate students for a single source book containing the necessary and relevant material in the areas of lasers and holography.

Download or read book Feasibility Study of Three dimensional Holographic Interferometry for Aerodynamics written by and published by . This book was released on 1983 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase Control During Reconstruction of Holographically Recorded Flow Fields Using Real time Holographic Interferometry written by Alpheus W. Burner and published by . This book was released on 1981 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Holographic Interferometry written by Thomas Kreis and published by Wiley-VCH. This book was released on 1996-04-11 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the principles and methods of holographic interferometry, a coherent-optical measurement technique for deformation and stress analysis, for the determination of refractive-index distributions, or applied to non-destructive testing. Emphasis of the book is on the quantitative computer-aided evaluation of the holographic interferograms. Based upon wave-optics the evaluation methods, their implementation in computer-algorithms, and their applications in engineering are described.

Download or read book Holographic Interferometry written by W. Schumann and published by Springer. This book was released on 2013-06-29 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This small book intends to build a bridge between the aspects of Optics and of Mechanics that are involved in the application of holographie interferometry to deformation analysis of opaque bodies. As such, it follows in some way the footsteps ofthe late Prof. H. Favre, who already in 1927 proposed to use interferometry for deformation measurements (refer to his thesis "Sur une nouveHe methode optique de determination des tensions interieures"). Many a concept also originates from the research and lectures of Prof. W. Prager in continuum mechanies, Profs. D.C. Drucker and C. Mylonas in experimental mechanics, Prof. C.R. Steele in sheH theory and Prof. W. Lukosz in physieal optics. Further stimulation arose in dis cussions about holography with Profs. R. Dändliker, J. Der Hovanesian and H. Tiziani as weH as with Drs. B. Ineiehen and F.M. Mottier. The contribution of Drs. W. Wüthrich, P. Bohler and G. Teichmann must also be acknowledged, the latter more partieularly for rendering valuable assistance on the delieate points of tensor calculus as weH as in the drawing of the figures. FuH gratitude must also be expressed to those who made the publication of this book possible: Dr. D. MacAdam who openheartedly accepted it in his series, Dr. H. Lotsch and the collab orators of Springer-Verlag, Mr. P. Hagnauer who revised the original text and Mrs. L. Wehrli whose patience was tried in carefully typing the manuscript, whieh Mr. F. Dufour read over again