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):
- 6700662
- Application Number:
- 09/767,104
- Assignee:
- The University of Chicago (Chicago, IL)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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 = {Tue Mar 02 00:00:00 EST 2004},
month = {Tue Mar 02 00:00:00 EST 2004}
}
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- US Patent Document 7,315,372
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- US Patent Document 7,340,129
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- Yalin, Azer; Willson, Bryan; DeFoort, Morgan W.
- US Patent Document 7,420,662