2 edition of Two-color laser speckle shift strain measurement system found in the catalog.
Two-color laser speckle shift strain measurement system
by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, D.C, Springfield, Va
Written in English
|Other titles||Two color laser speckle shift strain measurement system|
|Statement||Margaret L. Tuma ... [et al.].|
|Series||NASA technical memorandum -- 107301|
|Contributions||Tuma, Margaret L., United States. National Aeronautics and Space Administration.|
|The Physical Object|
Strain analysis by one-beam laser speckle interferometry. 2: Multiaperture method F. P, Chiang, R. P. Khetan (Applied Optics ) A laser-speckle strain gauge I. Yamaguchi (Journal of Physics E: Scientific Instruments ) Random (speckle) patterns for displacement and . This book provides a condensed but comprehensive up-to-date overview of spirituality and its application to health care. The need for healthcare workers to provide spiritual care or meet patients’ spiritual needs is gaining increasing importance in nursing and midwifery policy at local, national and international level.
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generated from a Er:ﬁber comb, two-color self-correction was performed, exceeding the accuracy provided by the empirical equations. In the second method, the pulse envelope and the carrier phase are used to determine the optical distances to realize an equivalent method to the two-color method but at a single color, leading to the accuracy of File Size: 45MB. The book includes velocities and accelerations in breaking ocean waves, run-up, interaction between strong waves and breakwaters, as well as a concise description of the state-of-the-art PIV technique. This book has its origins in a meeting on PIV and water waves which was held in Cambridge in
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A two color laser speckle shift strain measurement system based on the technique of Yamagnchi was designed. The dual wavelength light output from an Argon Ion laser was coupled into two separate single-mode optical fibers (patchcords).
The output of the patchcords. Two-color laser speckle shift strain measurement system (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Margaret L Tuma; United States.
National Aeronautics and Space Administration. Application of a locally operating laser-speckle strain sensor Article in IEEE Transactions on Instrumentation and Measurement 52(4) August.
Home > Journals > Optical Engineering > Volume 39 > Issue 2 Quantization, Image quality, Computer programming, Distance measurement, Optical engineering, Image processing, Algorithm development, Multimedia. Read Abstract + Results from real-time laser speckle-shift strain measurement system.
SPIE Digital Library Proceedings. CONFERENCE PROCEEDINGS Papers Presentations. Measurement of the temperature in gaseous flames has been widely investigated by thermocouples 7 and interferometric techniques, such as classical interferometry, 8 Moiré deflectometry, 9.
Applications of Holography and Optical Data Processing contains the proceedings of the International Conference on Applications of Holography and Optical Data Processing, held in Jerusalem in August The conference is attended by eminent scientists in the field of optics, characterized by high-level scientific presentations and discussions.
21 years ago it was a joint idea with Hans Rottenkolber to organize a workshop dedicated to the discussion of the latest results in the automatic processing of fringe patterns.
This idea was promoted by the insight that automatic and high precision phase measurement techniques will play a key.
OSA Publishing developed the Optics and Photonics Topics to help organize its diverse content more accurately by topic area. This topic browser contains over terms and is organized in a three-level hierarchy. Read more.
Topics can be refined further in the search results. A digital phase-measurement system for real-time holographic interferometry P. Hariharan, B.F. Oreb, N.
Brown (Optics Communications ) Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry Mitsuo Takeda, Hideki Ina, Seiji Kobayashi (Journal of the Optical Society of America ). Using a source laser and a second, local-oscillator laser resulted in signal to noise ratios of dB.
The drawbacks to this system are the cost, the complexity of the optical alignment, and the constraint to operate at discrete frequencies of the lasing gas. Electronic Speckle Pattern Interferometry (ESPI) is typically done using a single monochromatic light source with a monochrome camera.
This arrangement enables full-field measurements of a single deformation quantity according to the particular arrangement of the optical system. If a further deformation quantity is to be measured, then the associated optical arrangement must be used. Imaging techniques for mapping solution parameters, growth rate, and surface features during the growth of crystals from solution solute concentration (absorption photometry), displacements (particles, laser speckle, bubbles, and dye markers), or velocity (laser Doppler velocimetry and particle image velocimetry).
This paper is intended Cited by: In a similar approach, Mariampillai et al used a Fourier domain mode locked laser centered at nm and operating at 43 to 67 kHz, to demonstrate speckle variance OCT (Mariampillai et al ).
This system provided high contrast between blood vessels and surrounding tissue, but did not provide any velocity by: Laser specialists will also ﬁnd the book useful, particularly if they have to teach the subject to graduate or PhD students.
Fig. Sketch of the four-level system found in most laser gain media A record of the frequency shift versus time delay maps the derivative of the pump envelope.
When n2 is positive the probe frequency is red. Introduction. Based on the principle of low coherence interferometry, OCT is a relatively recent imaging modality that was proposed in the early s.
1 It measures depth-resolved reflections of near-infrared light to create cross-sectional images of tissue with micrometer resolution. 2 The capability of OCT to noninvasively image tissue at the micrometer scale introduces the idea of an Cited by: Optical scanner system for high resolution measurement of lubricant distributions on metal strips based on laser induced fluorescence Paper Time: PM - PM.
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Back to Sam's Laser FAQ Table of Contents.; Back to Items of Interest Sub-Table of Contents. Introduction to Items of Interest This chapter represents a potpourri of general laser information. Basically, when something interesting and relevant to lasers shows up on one of the USENET newsgroups or elsewhere, it gets stuck in here.
The system comprises two electrodes for ECG measurement, two GSR electrodes and two newly designed IDAT microsensors. All devices are built into the steering wheel. The IDAT sensors integrate an inter-digital array (IDA) [ ] and a temperature sensor (T) into one small device and can be used for the measurement of skin temperature, GSR and Cited by: 8.
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