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Measurement Of Size Distribution Of Submicron Particles Using New Laser Diagnostics
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Book Synopsis Measurement of Size Distribution of Submicron Particles Using New Laser Diagnostics by : James F. Driscoll
Download or read book Measurement of Size Distribution of Submicron Particles Using New Laser Diagnostics written by James F. Driscoll and published by . This book was released on 1979 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The one year research program described here was a direct extension of work completed during the 1977 AFOSR/ASEE Summer Faculty Research program at AFRPL. During that program the author and Dr. David Mann, AFRPL, performed the first is situ size measurements of submicron alumina (Al2O3) particles that have been published to date. The new laser diagnostic technique used, Diffusion Broadening Spectroscopy, represents a new advance in the state-of-the-art of submicron particle sizing. The goal of the research described herein was to develop a data reduction procedure to extend the applicability of the technique, so that size distribution half width can be measured, in addition to particle mean diameter. The computer routine was developed to determine particle mean diameter and size distribution half width, given light scattering data obtained at two scattering angles. Sensitivity of the results was investigated and feasibility of future use of the technique in rocket motors and plumes was deduced. (Author).
Book Synopsis Study of Submicron Particle Size Distribution by Laser Doppler Measurement of Brownian Motion by : Wai K. Cheng
Download or read book Study of Submicron Particle Size Distribution by Laser Doppler Measurement of Brownian Motion written by Wai K. Cheng and published by . This book was released on 1987 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical and experimental study on the feasibility of determining the size of a single submicron particle by observing its Brownian motion characteristics has been carried out. The method is based on measurement of the particle motion interferometrically using the light scattered from a pair of intersecting laser beams. The particle is assumed to be in thermal equilibrium with a fluid medium. due to the viscous damping of the fluid, the motion of the particle exhibits relaxation behavior. The relaxation time may be obtained from the interference signal. Knowing the temperature and the viscosity of the fluid, the mass, hence the size of the particle may be determined from the relaxation time. Monte Carlo simulation of the Brownian motion detector response has shown that the relaxation time may be obtained from the statistics of the time between extrema of the signal. A proof-of-concept experiment was conducted using latex spheres of known sizes as test particles. The signal to noise ratio of the experimental setup, however, was not adequate for determining the size of the particles.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Submicron Particle Size Distributions by Laser Doppler Measurement of Brownian Motion by : A. C. Stanton
Download or read book Study of Submicron Particle Size Distributions by Laser Doppler Measurement of Brownian Motion written by A. C. Stanton and published by . This book was released on 1984 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few nonintrusive techniques are available for particle measurements in the submicron size range (
Book Synopsis A Laser Diagnostic Technique for the Measurement of Droplet and Particle Size Distributions by : J. Swithenbank
Download or read book A Laser Diagnostic Technique for the Measurement of Droplet and Particle Size Distributions written by J. Swithenbank and published by . This book was released on 1975 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to verify the various theoretical models of practical combustion systems, experimental measurements are urgently required. A number of laser instrumentation systems which do not disturb the flow are being devised to satisfy this need. This study describes a technique which has been developed for the measurement of droplet or solid particle size distribution. These measurements are required, for example, as the input to mathematical models of combustion which include evaporation. The technique is based on the Fraunhofer diffraction of a parallel beam of mono-chromatic light by the moving droplets. A Fourier transform lens is used to focus a stationary light pattern onto a multielement photo-detector to measure the diffracted light energy distribution. A mini-computer program translates the light energy distribution into the corresponding, unique, droplet size distribution. The droplets or particles are classified into 31 size groups spanning two decades of diameter, (e.g. 5 micrometers to 500 micrometers using a 300 mm focal length Fourier transform lens).
Book Synopsis Submicron Particle Size Distribution and Charge State in Urban Areas Using Mobility Particle Sizers by : Matthew Darren Wright
Download or read book Submicron Particle Size Distribution and Charge State in Urban Areas Using Mobility Particle Sizers written by Matthew Darren Wright and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Submicron Particle Size Measurement with a Screen Diffusion Battery by : Air Pollution Technology, inc
Download or read book Submicron Particle Size Measurement with a Screen Diffusion Battery written by Air Pollution Technology, inc and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The project is one of several (RP414, 463) supported by EPRI to develop instrumentation for quantitative measurement of particle size distribution and subsequently the fractional efficiency of particulate control devices installed on coal fired utility boilers. A review of particle collection on the wire mesh screens used in the A.P.T. Screen Diffusion Battery (SDB) is presented. The study reports experiments performed on arrays of parallel wires. The results verify the theory of particle collection on single cylinders. A mathematical model is presented for determining submicron particle size distributions from screen diffusion battery data.
Author :University of Michigan. Division of Research Development and Administration Publisher : ISBN 13 : Total Pages :596 pages Book Rating :4.3/5 (91 download)
Book Synopsis Reporter by : University of Michigan. Division of Research Development and Administration
Download or read book Reporter written by University of Michigan. Division of Research Development and Administration and published by . This book was released on 1976 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 1198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Submicron Particle Size Measurement with a Screen Diffusion Battery by : Air Pollution Technology, inc
Download or read book Submicron Particle Size Measurement with a Screen Diffusion Battery written by Air Pollution Technology, inc and published by . This book was released on 1978 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Laser Diagnostic Technique for the Measurement of Droplet and Particle Size Distribution by : Joshua Swithenbank
Download or read book A Laser Diagnostic Technique for the Measurement of Droplet and Particle Size Distribution written by Joshua Swithenbank and published by . This book was released on 197? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1987-07 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Awards in Engineering written by and published by . This book was released on 1983 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Current Awareness in Particle Technology by :
Download or read book Current Awareness in Particle Technology written by and published by . This book was released on 1996 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Engineering written by and published by . This book was released on 1992 with total page 1458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publishes papers reporting on research and development in optical science and engineering and the practical applications of known optical science, engineering, and technology.
Book Synopsis Toxicology Research Projects Directory by :
Download or read book Toxicology Research Projects Directory written by and published by . This book was released on 1979 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Youth Conference on Electronics, Telecommunications and Information Technologies by : Elena Velichko
Download or read book International Youth Conference on Electronics, Telecommunications and Information Technologies written by Elena Velichko and published by Springer Nature. This book was released on 2020-11-27 with total page 743 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents peer reviewed and selected papers of the International Youth Conference on Electronics, Telecommunications and Information Technologies (YETI-2020), held in Peter the Great St. Petersburg Polytechnic University, St. Petersburg on July 10–11, 2020. It discusses current trends and major advances in electronics, telecommunications, optical and information technologies, focusing, in particular, on theoretical and practical aspects of developing novel devices and materials, improving data processing methods and technologies. The conference brings together young researchers and early-career scientists participating in a series of lectures and presentations, establishing contacts with potential partners, sharing new project ideas and starting new collaborations.
