A Quasi-Parallel DAQ Scheme for Wavelength Modulation Spectroscopy Tomography

Godwin Enemali; Chang Liu; Nick Polydorides; Hugh Mccann

doi:10.1109/IST48021.2019.9010164

A Quasi-Parallel DAQ Scheme for Wavelength Modulation Spectroscopy Tomography

Godwin Enemali, Chang Liu, Nick Polydorides, Hugh Mccann

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract / Description of output

Wavelength Modulation Spectroscopy Tomography (WMST) has been widely used for imaging of critical flame parameters, e.g. temperature distribution and species concentration distribution, in harsh environments. To better characterize turbulent flows in practical applications, it is highly desired to improve the temporal resolution of the WMST method. This paper presents a quasi-parallel data acquisition scheme for WMST, which can maintain the temporal response of a fully parallel system with cost-effective hardware implementation. The key idea is to multiplex among the channels on the fast modulated periods within each wavelength scan. The proposed method was validated by four-channel quasi-parallel data acquisition of the absorption data using a customized FPGA platform. The results show that accurate harmonics information can be extracted simultaneously for each multiplexed channel.

Original language	English
Title of host publication	2019 IEEE International Conference on Imaging Systems and Techniques (IST)
Publisher	Institute of Electrical and Electronics Engineers
DOIs	https://doi.org/10.1109/IST48021.2019.9010164
Publication status	Published - 27 Feb 2020
Event	2019 IEEE International Conference on Imaging Systems and Techniques - ABU DHABI, United Arab Emirates Duration: 8 Dec 2019 → 10 Dec 2019 https://ist2019.ieee-ims.org/

Conference

Conference	2019 IEEE International Conference on Imaging Systems and Techniques
Abbreviated title	IST 2019
Country/Territory	United Arab Emirates
City	ABU DHABI
Period	8/12/19 → 10/12/19
Internet address	https://ist2019.ieee-ims.org/

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10.1109/IST48021.2019.9010164

Cite this

@inproceedings{e31a118b212e4634b2e662961aa80762,

title = "A Quasi-Parallel DAQ Scheme for Wavelength Modulation Spectroscopy Tomography",

abstract = "Wavelength Modulation Spectroscopy Tomography (WMST) has been widely used for imaging of critical flame parameters, e.g. temperature distribution and species concentration distribution, in harsh environments. To better characterize turbulent flows in practical applications, it is highly desired to improve the temporal resolution of the WMST method. This paper presents a quasi-parallel data acquisition scheme for WMST, which can maintain the temporal response of a fully parallel system with cost-effective hardware implementation. The key idea is to multiplex among the channels on the fast modulated periods within each wavelength scan. The proposed method was validated by four-channel quasi-parallel data acquisition of the absorption data using a customized FPGA platform. The results show that accurate harmonics information can be extracted simultaneously for each multiplexed channel.",

author = "Godwin Enemali and Chang Liu and Nick Polydorides and Hugh Mccann",

note = "Acceptance date set to exclude from REF OA Policy; 2019 IEEE International Conference on Imaging Systems and Techniques , IST 2019 ; Conference date: 08-12-2019 Through 10-12-2019",

year = "2020",

month = feb,

day = "27",

doi = "10.1109/IST48021.2019.9010164",

language = "English",

booktitle = "2019 IEEE International Conference on Imaging Systems and Techniques (IST)",

publisher = "Institute of Electrical and Electronics Engineers",

url = "https://ist2019.ieee-ims.org/",

}

Enemali, G, Liu, C , Polydorides, N & Mccann, H 2020, A Quasi-Parallel DAQ Scheme for Wavelength Modulation Spectroscopy Tomography. in 2019 IEEE International Conference on Imaging Systems and Techniques (IST)., 19410515 , Institute of Electrical and Electronics Engineers, 2019 IEEE International Conference on Imaging Systems and Techniques , ABU DHABI, United Arab Emirates, 8/12/19. https://doi.org/10.1109/IST48021.2019.9010164

TY - GEN

T1 - A Quasi-Parallel DAQ Scheme for Wavelength Modulation Spectroscopy Tomography

AU - Enemali, Godwin

AU - Liu, Chang

AU - Polydorides, Nick

AU - Mccann, Hugh

N1 - Acceptance date set to exclude from REF OA Policy

PY - 2020/2/27

Y1 - 2020/2/27

N2 - Wavelength Modulation Spectroscopy Tomography (WMST) has been widely used for imaging of critical flame parameters, e.g. temperature distribution and species concentration distribution, in harsh environments. To better characterize turbulent flows in practical applications, it is highly desired to improve the temporal resolution of the WMST method. This paper presents a quasi-parallel data acquisition scheme for WMST, which can maintain the temporal response of a fully parallel system with cost-effective hardware implementation. The key idea is to multiplex among the channels on the fast modulated periods within each wavelength scan. The proposed method was validated by four-channel quasi-parallel data acquisition of the absorption data using a customized FPGA platform. The results show that accurate harmonics information can be extracted simultaneously for each multiplexed channel.

AB - Wavelength Modulation Spectroscopy Tomography (WMST) has been widely used for imaging of critical flame parameters, e.g. temperature distribution and species concentration distribution, in harsh environments. To better characterize turbulent flows in practical applications, it is highly desired to improve the temporal resolution of the WMST method. This paper presents a quasi-parallel data acquisition scheme for WMST, which can maintain the temporal response of a fully parallel system with cost-effective hardware implementation. The key idea is to multiplex among the channels on the fast modulated periods within each wavelength scan. The proposed method was validated by four-channel quasi-parallel data acquisition of the absorption data using a customized FPGA platform. The results show that accurate harmonics information can be extracted simultaneously for each multiplexed channel.

U2 - 10.1109/IST48021.2019.9010164

DO - 10.1109/IST48021.2019.9010164

M3 - Conference contribution

BT - 2019 IEEE International Conference on Imaging Systems and Techniques (IST)

PB - Institute of Electrical and Electronics Engineers

T2 - 2019 IEEE International Conference on Imaging Systems and Techniques

Y2 - 8 December 2019 through 10 December 2019

ER -

A Quasi-Parallel DAQ Scheme for Wavelength Modulation Spectroscopy Tomography

Abstract / Description of output

Conference

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