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Title: Aerosol mobility size spectrometer

Abstract

A device for measuring aerosol size distribution within a sample containing aerosol particles. The device generally includes a spectrometer housing defining an interior chamber and a camera for recording aerosol size streams exiting the chamber. The housing includes an inlet for introducing a flow medium into the chamber in a flow direction, an aerosol injection port adjacent the inlet for introducing a charged aerosol sample into the chamber, a separation section for applying an electric field to the aerosol sample across the flow direction and an outlet opposite the inlet. In the separation section, the aerosol sample becomes entrained in the flow medium and the aerosol particles within the aerosol sample are separated by size into a plurality of aerosol flow streams under the influence of the electric field. The camera is disposed adjacent the housing outlet for optically detecting a relative position of at least one aerosol flow stream exiting the outlet and for optically detecting the number of aerosol particles within the at least one aerosol flow stream.

Inventors:
 [1];  [2]
  1. Port Jefferson, NY
  2. Port Jefferson Station, NY
Issue Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
919902
Patent Number(s):
7298486
Application Number:
11/026,726
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Wang, Jian, and Kulkarni, Pramod. Aerosol mobility size spectrometer. United States: N. p., 2007. Web.
Wang, Jian, & Kulkarni, Pramod. Aerosol mobility size spectrometer. United States.
Wang, Jian, and Kulkarni, Pramod. Tue . "Aerosol mobility size spectrometer". United States. https://www.osti.gov/servlets/purl/919902.
@article{osti_919902,
title = {Aerosol mobility size spectrometer},
author = {Wang, Jian and Kulkarni, Pramod},
abstractNote = {A device for measuring aerosol size distribution within a sample containing aerosol particles. The device generally includes a spectrometer housing defining an interior chamber and a camera for recording aerosol size streams exiting the chamber. The housing includes an inlet for introducing a flow medium into the chamber in a flow direction, an aerosol injection port adjacent the inlet for introducing a charged aerosol sample into the chamber, a separation section for applying an electric field to the aerosol sample across the flow direction and an outlet opposite the inlet. In the separation section, the aerosol sample becomes entrained in the flow medium and the aerosol particles within the aerosol sample are separated by size into a plurality of aerosol flow streams under the influence of the electric field. The camera is disposed adjacent the housing outlet for optically detecting a relative position of at least one aerosol flow stream exiting the outlet and for optically detecting the number of aerosol particles within the at least one aerosol flow stream.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {11}
}

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Works referenced in this record:

Design and evaluation of a nanometer aerosol differential mobility analyzer (Nano-DMA)
journal, June 1998


Resolution of the radial differential mobility analyzer for ultrafine particles
journal, December 1996


Electrical aerosol spectrometer of Tartu University
journal, June 2002


Aerosol classification by electric mobility: apparatus, theory, and applications
journal, November 1975


Radial Differential Mobility Analyzer
journal, January 1995