Journal ArticleDOI
Experimental studies of optical particle counters
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In this article, the response characteristics of several commercially available optical particle counters have been studied experimentally using monodisperse aerosols generated by the vibrating-orifice generator.About:
This article is published in Atmospheric Environment.The article was published on 1974-07-01. It has received 107 citations till now. The article focuses on the topics: Particle & Particle size.read more
Citations
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Journal ArticleDOI
A submicron aerosol standard and the primary, absolute calibration of the condensation nuclei counter
TL;DR: In this article, a submicron aerosol generator has been described, which combines pneumatic atomization with electrostatic classification to produce uniform particles from 0.01 to 0.5 µm at concentrations up to 10 6 µm.
PatentDOI
Gas dynamic virtual nozzle for generation of microscopic droplet streams
TL;DR: In this article, a single-file stream of droplets of a fluid to a high-vacuum system was produced by using a two concentric tubes with a smoothly converging-diverging exit channel and the outlet end positioned within the converging section of the exit channel.
Journal ArticleDOI
Evaluation of the Alphasense optical particle counter (OPC-N2) and the Grimm portable aerosol spectrometer (PAS-1.108)
TL;DR: It is suggested that, given site-specific calibrations, the OPC-N2 can provide number and mass concentrations similar to the PAS-1.108, which was compared to another OPC and reference instruments for three aerosols.
Journal ArticleDOI
Aerosol growth studies—II. Preparation and growth measurements of monodisperse salt aerosols
TL;DR: In this article, a continuous flow apparatus was developed for studying inorganic salt particle growth by water vapor condensation, and the size changes exhibited by a NaCl aerosol at a number of specific relative humidities.
Journal ArticleDOI
Single-Particle Fluorescence Spectrometer for Ambient Aerosols
Yong Le Pan,Justin M. Hartings,Ronald G. Pinnick,Steven C. Hill,Justin Halverson,Richard K. Chang +5 more
TL;DR: A fluorescence particle spectrometer (FPS) for real-time measurement of the fluorescence spectra of aerosol particles in the size range 1-10 w m diameter is reported in this paper.
References
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Journal ArticleDOI
Generation of monodisperse aerosol standards
Journal ArticleDOI
Experimental observation of aerosol deposition in turbulent flow
TL;DR: In this article, the deposition rate of aerosol particles in turbulent flow has been measured in vertical pipes for nominal Reynolds numbers of 10,000 and 50,000, and for particle dia. of 1·4-21 μm using monodisperse aerosols generated by the vibrating orifice of a monodiscriminative aerosol generator.
Journal ArticleDOI
Response calculations for light-scattering aerosol counters and photometers
TL;DR: In this paper, the Mie theory angular scattering distributions for spherical particles of refractive index m = 1.2 (0.2) to 2.4 (1.4 10 μ) were analyzed.
Journal ArticleDOI
The minnesota aerosol-analyzing system used in the Los Angeles smog project
TL;DR: The Los Angeles Smog Project as mentioned in this paper was a collaborative research effort involving investigators from the University of Minnesota, California Institute of Technology, California State Department of Health, University of Washington, and the California Statewide Air Pollution Research Center.
Journal ArticleDOI
Polystyrene aerosols—electrical charge and residue size distribution
TL;DR: In this paper, the complete size distribution of polystyrene aerosols produced from a dilute hydrosol by the atomization and evaporation process has been measured over the size range 0.002-5 μ in 18 size intervals by means of an aerosol counting and size distribution measuring system consisting of three instruments in parallel operation: a General Electric condensation nuclei counter, an electric particle counter and a Royco optical particle counter.
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