Beam-modulation methods in quantitative and flow-visualization holographic interferometry

Cover of: Beam-modulation methods in quantitative and flow-visualization holographic interferometry |

Published by National Aeronautics and Space Administration, Lewis Research Center in [Cleveland, Ohio .

Written in English

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Subjects:

  • Flow visualization.,
  • Holographic interferometry.,
  • Flow visualization.,
  • Heterodyning.,
  • Holographic interferometry.,
  • Holography.

Edition Notes

Microfiche. [Washington, D.C. : National Aeronautics and Space Administration], 1986. 1 microfiche.

Book details

StatementArthur J. Decker.
SeriesNASA technical memorandum -- 87306.
ContributionsLewis Research Center.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL16151164M

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Get this from a library. Beam-modulation methods in quantitative and flow-visualization holographic interferometry. [Arthur J Decker; Lewis Research Center.]. Beam-modulation methods in quantitative and flow visualization holographic interferometry Decker, A.

Abstract. This report discusses heterodyne holographic interferometry and time-average holography with a frequency shifted reference beam. Both methods will be used for the measurement and visualization of internal transonic flows, where the Cited by: 1. Beam-modulation methods in quantitative and flow visualization holographic interferometry.

By A. Decker. Abstract. This report discusses heterodyne holographic interferometry and time-average holography with a frequency shifted reference beam.

Both methods will be used for the measurement and visualization of internal transonic flows, where Author: A. Decker. Beam-modulation methods in quantitative and flow-visualization holographic interferometry. By Arthur J. Decker. Abstract. Heterodyne holographic interferometry and time-average holography with a frequency shifted reference beam are discussed.

Both methods will be used for the measurement and visualization of internal transonic flows where the Author: Arthur J. Decker. Beam-modulation methods in quantitative and flow. Summary. The holographic color schlieren method of visualisation of heterogeneities in transparent media are dealt with in the paper.

The essence of the method is expounded, its realization chart and results of experiments on flows round the flying ball are given. While holographic interferometry gives a good picture of the stress distribution over a complex structure, its use in stress-analysis has been limited by the fact that quantitative information on.

Digital Holographic Interferometry. We will close this chapter by discussing the more recent holographic method used in interferometry: digital holographic interferometry (DHI) based on DH. Like for ESPI, in DH the hologram is recorded directly on the image sensor.

Therefore the planes (u,v) and (x,y) overlap. Abstract. Three-dimensional heat flows generally involve difficulties in being visualized with nonintuitive optical methods.

In this paper, however, an attempt is made to visualize such flows using a laser holographic interferometry of which measuring light rays are set to be propagated in the stream direction of concerned heat flows. Beam-modulation methods in quantitative and flow-visualization holographic interferometry.

Both methods will be used for the measurement and visualization of internal transonic flows where the. Beam-modulation methods in quantitative and flow-visualization holographic interferometry [microform] / Tomographic methods in flow diagnostics [microform] / Arthur J.

Decker Interferometer control of optical tweezers [microform] / Arthur J. Decker. The ability to store and compare wavefronts directly provided by holography led to quantum leaps in understanding how turbulence affects optical imaging, and holographic interferometry provided one of the very first direct quantitative and visual observations of aero optical effects.

Holographic interferometry (HI) is a technique which enables static and dynamic displacements of objects with optically rough surfaces to be measured to optical interferometric precision (i.e.

to fractions of a wavelength of light). These measurements can be applied to stress, strain and vibration analysis, as well as to non-destructive testing and radiation dosimetry. Decker, A. Beam modulation methods in quantitative and flow visualisation holographic interferometry, Agard Conference Proceedings No.

Advanced Instrumentation for Aero Engine Components, 67th Symposium, Philadelphia, Pennsylvania, May   Holographic interferometry may generally be considered the more versatile reference beam interferometry method as it allows one to obtain more than one view of the flow and because it permits the use of almost arbitrarily shaped test sections.

The following discussion will be restricted to so-called ‘imaging holographic interferometry. Using holographic interferometry the three-dimensional structure of unsteady and large-scale motions within subsonic and transonic turbulent jet flows has been studied.

The instantaneous 3D flow structure is obtained by tomographic reconstruction techniques from quantitative phase maps recorded using a rapid-switching, double reference beam. Hologram / Book 2 Real-time colour holographic interferometry tools adapted to quantitative flow visualization.

Some of these methods such as shadowgraph or schlieren method are based. Flow visualization. Flow visualization can be defined as “the art and science of obtaining a clear image of a physical flow field” and the ability to capture it for display or further processing.

Flow visualization by optical methods can be broadly classified in accordance to four basic principles: thermal radiation; light scattering from tracer particles; interaction of fluid flow. schlieren method for quantitative flow field test are analyzed. Edge Using the Method of Holographic Interferometry, Fizika, 22, 3, pp.body were studied by a smoke-wire.

Abstract. Since its invention inholographic interferometry has found many applications, mainly in deformation and vibration analysis of solid objects, but also in the investigation of transparent objects with refractive-index changes and in holographic contouring.

Flow Visualization Flow visualization in fluid dynamics is used to make the flow patterns visible, In order to get a qualitative or quantitative information on them. Most fluids (air, water, etc.) are transparent, thus their flow patterns are invisible to us without some special methods to.

Optical methods reported for compressible flows include the schlieren method, interferometric methods, the phase-contrast method, and methods based on holographic flow visualization. a good book for study holography. many researchers have spent considerable time over the last fifty years to develop metrology tools adapted to quantitative flow visualization.

Some of these methods such as shadowgraph or schlieren method are based on measuring the light deviation through the test section (Merzkirch, ), other methods. Summary. Digital laser speckle photography, an advanced technique of quantitative flow structure evaluation, has been applied for quantitative density field monitoring in transonic flow in the Shock Tunnel of the Institute of Fluid-Flow Machinery, Gdan’sk.

Measurements of density distributions in the boundary layer of shock wave interacting with wall vortices as well as surface pressure were. Quantitative Determination of Three-Dimensional Density Field by Holographic Interferometry. Tse-Fou Zien, Advanced holographic diagnostic methods for 3-D hypersonic flow fields.

Application of holography to flow visualization. Results of quantitative holographic interferometric flow visualization of cylindrical interface instability induced by converging cylindrical shock waves are reported. Experiments were conducted in an annular vertical co-axial diaphragmless shock tub.

Holographic interferometry is a technique that allows static & dynamic displacements of the objects with optically rough surfaces to be measured to the optical interferometric precision (i.e.

to fractions of a wavelength of light), These measurements can be applied to stress, strain & vibration analysis, as well as to non-destructive testing & radiation dosimetry. 44 Holographische Interferometrie und deren quantitative Auswertung, demonstriert am Beispiel zylindrischer GfK-Rohre [Holographic interferometry and its quantitative analysis, demonstrated by the example of cylindrical GfK-tubes] K.

Grunewald, D. Kaletsch, V. Lehmann, H. Wachutka (Optik ). Books. Methods of digital holography by L. Yaroslavskii and N. Merzlyakov, Springer () Digital Holography and Digital Image Processing: Principles, Methods, Algorithms by Leonid Yaroslavsky, Kluwer () Handbook of Holographic Interferometry: Optical and Digital Methods.

New method for compensating and measuring any motion of three- dimensional objects in holographic interferometry A. Stimpfling, P. Smigielski (Optical Engineering ) Comparative holography: a technique for eliminating background fringes in holographic interferometry Don B.

Neumann (Optical Engineering ). Holographic Interferometry A Machocozehnder Approach. 7 hours ago by dyty. Holographic Interferometry From the Scope of Deformation Analysis of Opaque Bodies.

@ Filed under: Search. kapoc. The Application of Holographic Interferometry. Nondestructive Holographic Interferometry Methods for the.

Holographic Interferometry - From the Scope of Deformation. Three-Dimensional Heat Flow Visualization with a Laser Holographic Interferometry. Pages Flow Visualization and Quantitative Evaluation of the Effect of Bore/Stroke Ratio on Swirl in a Piston Engine.

Holographic Color Schlieren Method of Flow Visualization. Resonance refractivity studies of sodium vapor for enhanced flow visualization. Phase-conjugate resonant holographic interferometry applied to NH concentration measurements in a two-dimensional diffusion flame.

real-time interferometer for quantitative flow visualization. A simple and versatile, real-time interferometer for quantitative flow visualization. Advanced holographic diagnostic methods for 3-D hypersonic flow fields.

Holographic interferometry measurements of subsonic turbulent boundary layers. SINCLAIR. Zehnder holographic interferometer, Twymann-Green interferometer 1.

Introduction For temperature field measurement, especially in fast moving fluids with high tempe-rature and velocity gradients like pulsatile jets, it is necessary to use a contactless, non-invasive and precise experimental method. Digital holographic interferometry (DHI) follows.

Holographic Interferometry A Machocozehnder Approach. Published by posen. The working fluid is air at the barometric pressure. The holographic interferometry and hot-wire anemometry have been used. A special optical setup, based on a Michelson interferometer, has been developed and used. The setup exhibits a double sensitivity, in comparison with a common Mach-Zehnder holographic interferometer.

Digital holographic interferometry and dynamic speckle as methods to determine the drying time of paints F Vincitorio, C Mulone, J Gervasoni, N. Budini, C. Freyre, C. Böhm, A. Böhm, A. Ramil, A.J. Lopez. PSFVIP Simultaneous 3D location and size measurement of bubbles and irregular sand particles using interferometric out-of-focus imaging.

Visualization of Flow Mixing Mechanisms in Pin-Fin Arrays.- Thermal Design Approach for a Copy Machine by Use of Flow Visualization and a Personal Computer.- Flow Visualization and Heat Transfer Measurements by Infrared Thermography (Keynote Paper).- Three-Dimensional Heat Flow Visualization with a Laser Holographic Interferometry  A new method of holographic interferometry is proposed, which makes use of three‐beam interference for the production of the hologram.

A single exposure is then sufficient to produce the hologram from which the interferogram may be reconstructed in the usual manner.Microstructure and Properties, JulyParis (France). Book of Abstracts € ) C. Ibarra-Castanedo, S. Sfarra, D. Ambrosini, D.

Paoletti, A. Bendada, X. Maldague "Diagnostics of panel paintings using holographic interferometry and pulsed thermography "Quantitative InfraRed Thermography Journal 7, () €.

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