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Title: Feed-forward spectral calibration methodology for line-scanned tunable laser absorption spectroscopy

Abstract

A generalized feed-forward method for accurate tunable laser absorption spectroscopy includes generating a laser beam. The generated laser beam is directed down a reference path and a test/sample path. One or more parameters are extracted from the reference path. The one or more parameters, extracted from the reference path, are used as feed-forward, to adjust spectral analysis of the test/sample path to detect a composition and/or concentration of an analyte gas within the test/sample path. The extraction of the one or more parameters from the reference path and the spectral analysis of the test/sample path are performed substantially concurrently.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1824096
Patent Number(s):
11041803
Application Number:
16/364,544
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AR0000540
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/26/2019
Country of Publication:
United States
Language:
English

Citation Formats

Green, William, Dittberner, Matthias, Xiong, Chi, Zhang, Eric Huayu, and Wysocki, Gerard. Feed-forward spectral calibration methodology for line-scanned tunable laser absorption spectroscopy. United States: N. p., 2021. Web.
Green, William, Dittberner, Matthias, Xiong, Chi, Zhang, Eric Huayu, & Wysocki, Gerard. Feed-forward spectral calibration methodology for line-scanned tunable laser absorption spectroscopy. United States.
Green, William, Dittberner, Matthias, Xiong, Chi, Zhang, Eric Huayu, and Wysocki, Gerard. Tue . "Feed-forward spectral calibration methodology for line-scanned tunable laser absorption spectroscopy". United States. https://www.osti.gov/servlets/purl/1824096.
@article{osti_1824096,
title = {Feed-forward spectral calibration methodology for line-scanned tunable laser absorption spectroscopy},
author = {Green, William and Dittberner, Matthias and Xiong, Chi and Zhang, Eric Huayu and Wysocki, Gerard},
abstractNote = {A generalized feed-forward method for accurate tunable laser absorption spectroscopy includes generating a laser beam. The generated laser beam is directed down a reference path and a test/sample path. One or more parameters are extracted from the reference path. The one or more parameters, extracted from the reference path, are used as feed-forward, to adjust spectral analysis of the test/sample path to detect a composition and/or concentration of an analyte gas within the test/sample path. The extraction of the one or more parameters from the reference path and the spectral analysis of the test/sample path are performed substantially concurrently.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {6}
}

Works referenced in this record:

Tunable diode laser absorption spectroscopy with corrected laser ramping nonlinearities
patent, June 2020


On-Chip Spectroscopic Sensors with Optical Fringe Suppression
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Pressure- and temperature-compensating oxygen sensor
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Dual modulation laser line-locking technique for wavelength modulation spectroscopy
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Diagnostic tests using near-infrared laser absorption spectroscopy
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Low Power Reduction of Biases in a Micro Primary Frequency Standard
patent-application, October 2013


Wavelength modulation spectroscopy method
patent-application, June 2005


Multi-Harmonic Inline Reference Cell for Optical Trace Gas Sensing
patent-application, February 2014