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:
-
- Bedford, MA
- Cambridge, MA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- OSTI Identifier:
- 875004
- Patent Number(s):
- 6509968
- Assignee:
- Massaschusetts Institute of Technology (Cambridge, MA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
- 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 = {Wed Jan 01 00:00:00 EST 2003},
month = {Wed Jan 01 00:00:00 EST 2003}
}
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Works referenced in this record:
Spectroscopic diagnostics of an atmospheric microwave plasma for monitoring metals pollution
journal, January 1999
- Woskov, P. P.; Hadidi, K.; Borrás, M. C.
- Review of Scientific Instruments, Vol. 70, Issue 1