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Title: Spectroscopic detection

Abstract

In embodiments, spectroscopic monitor monitors modulated light signals to detect low levels of contaminants and other compounds in the presence of background interference. The monitor uses a spectrometer that includes a transmissive modulator capable of causing different frequency ranges to move onto and off of the detector. The different ranges can include those with the desired signal and those selected to subtract background contributions from those with the desired signal. Embodiments of the system are particularly useful for monitoring metal concentrations in combustion effluent.

Inventors:
 [1];  [2]
  1. (Bedford, MA)
  2. (Cambridge, MA)
Issue Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA
OSTI Identifier:
875004
Patent Number(s):
6509968
Assignee:
Massaschusetts Institute of Technology (Cambridge, MA) PNNL
DOE Contract Number:  
FG07-98ID13601
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
spectroscopic; detection; embodiments; monitor; monitors; modulated; light; signals; detect; levels; contaminants; compounds; presence; background; interference; spectrometer; transmissive; modulator; capable; causing; frequency; ranges; move; detector; signal; selected; subtract; contributions; useful; monitoring; metal; concentrations; combustion; effluent; light signal; modulated light; /356/

Citation Formats

Woskov, Paul P., and Hadidi, Kamal. Spectroscopic detection. United States: N. p., 2003. Web.
Woskov, Paul P., & Hadidi, Kamal. Spectroscopic detection. United States.
Woskov, Paul P., and Hadidi, Kamal. Wed . "Spectroscopic detection". United States. https://www.osti.gov/servlets/purl/875004.
@article{osti_875004,
title = {Spectroscopic detection},
author = {Woskov, Paul P. and Hadidi, Kamal},
abstractNote = {In embodiments, spectroscopic monitor monitors modulated light signals to detect low levels of contaminants and other compounds in the presence of background interference. The monitor uses a spectrometer that includes a transmissive modulator capable of causing different frequency ranges to move onto and off of the detector. The different ranges can include those with the desired signal and those selected to subtract background contributions from those with the desired signal. Embodiments of the system are particularly useful for monitoring metal concentrations in combustion effluent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}

Patent:

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