Practical Aspects of Laser Holographic Interferometry in Wind Tunnels PDF Download
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Languages : en
Pages : 20
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Languages : en
Pages : 20
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Author: Tse-Fou Zien
Publisher:
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Category : Holographic interferometry
Languages : en
Pages : 120
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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...
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Category : Aeronautics
Languages : en
Pages : 488
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Languages : en
Pages : 0
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Holographic interferometry was successfully applied to a large-scale wind tunnel (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. A 15-degree half-angle opaque cone at zero and 16.5 degrees yaw in a M = 2 free stream provided the flow field for the investigation. The aerodynamic conditions were such that flow field was largely inviscid.
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Languages : en
Pages : 102
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Book Description
Holographic interferometry was successfully applied to a large-scale wind tunnel (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. A 15-degree half-angle opaque cone at zero and 16.5 degrees yaw in a M = 2 free stream provided the flow field for the investigation. The aerodynamic conditions were such that flow field was largely inviscid.
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Category :
Languages : en
Pages : 64
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Category :
Languages : en
Pages : 16
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Author: B. G. Ponseggi
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Category : Image processing
Languages : en
Pages : 230
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Author: Gregory R. Toker
Publisher: CRC Press
ISBN: 1351832670
Category : Technology & Engineering
Languages : en
Pages : 215
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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.
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Category : Aeronautics
Languages : en
Pages : 668
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