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Title: Portable LII based instrument and method for particulate characterization in combustion exhaust

Abstract

An improved instrument and method are provided for particulate characterization in combustion exhausts. An instrument for measuring particles of combustion exhausts includes a laser for producing a high intensity laser pulse. A sample cell receives a combustion exhaust input and the high intensity laser pulse. At least one detector detects a signal generated by particles in said received combustion exhaust input. The detected signal includes laser induced incandescence (LII). Signal conditioning electronics is coupled to the detector and particle data is displayed during transient operation of a combustion engine. Data related to mass concentration, number density, and particle size of particles in the received combustion exhaust input is measured and displayed.

Inventors:
;
Issue Date:
Research Org.:
The Univ. of Chicago, Chicago, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531471
Patent Number(s):
6,700,662
Application Number:
09/767,104
Assignee:
The University of Chicago (Chicago, IL)
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2001-01-22
Country of Publication:
United States
Language:
English

Citation Formats

Gupta, Sreenath B., and Sekar, Ramanujam Raj. Portable LII based instrument and method for particulate characterization in combustion exhaust. United States: N. p., 2004. Web.
Gupta, Sreenath B., & Sekar, Ramanujam Raj. Portable LII based instrument and method for particulate characterization in combustion exhaust. United States.
Gupta, Sreenath B., and Sekar, Ramanujam Raj. Tue . "Portable LII based instrument and method for particulate characterization in combustion exhaust". United States. https://www.osti.gov/servlets/purl/1531471.
@article{osti_1531471,
title = {Portable LII based instrument and method for particulate characterization in combustion exhaust},
author = {Gupta, Sreenath B. and Sekar, Ramanujam Raj},
abstractNote = {An improved instrument and method are provided for particulate characterization in combustion exhausts. An instrument for measuring particles of combustion exhausts includes a laser for producing a high intensity laser pulse. A sample cell receives a combustion exhaust input and the high intensity laser pulse. At least one detector detects a signal generated by particles in said received combustion exhaust input. The detected signal includes laser induced incandescence (LII). Signal conditioning electronics is coupled to the detector and particle data is displayed during transient operation of a combustion engine. Data related to mass concentration, number density, and particle size of particles in the received combustion exhaust input is measured and displayed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {3}
}

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Works referenced in this record:

Method and apparatus for applying laser induced incandescence for the determination of particulate measurements
patent, January 2001


Apparatus for counting particles suspended in a fluid having a polarizing beam splitter
patent, August 1992


Absolute intensity measurements in laser induced incandescence
patent, November 2000


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