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

^*Corresponding author for this work

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

2 Citations (Scopus)

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.

Original language	English
Title of host publication	2019 IEEE International Conference on Imaging Systems and Techniques (IST)
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728138688
DOIs	https://doi.org/10.1109/IST48021.2019.9010164
Publication status	Published - 27 Feb 2020
Externally published	Yes
Event	2019 IEEE International Conference on Imaging Systems & Techniques - Abu Dhabi, United Arab Emirates Duration: 8 Dec 2019 → 10 Dec 2019 https://ist2019.ieee-ims.org/ (Link to conference website)

Publication series

Name	IST 2019 - IEEE International Conference on Imaging Systems and Techniques, Proceedings

Conference

Conference	2019 IEEE International Conference on Imaging Systems & 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/ (Link to conference website)

Keywords

demodulation
Field Programmable Gate Arrays (FPGA)
temporal resolution
Tomography
Wavelength Modulation Spectroscopy (WMS)

ASJC Scopus subject areas

Signal Processing
Media Technology
Radiology Nuclear Medicine and imaging
Instrumentation

Access to Document

10.1109/IST48021.2019.9010164

Cite this

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) Article 9010164 (IST 2019 - IEEE International Conference on Imaging Systems and Techniques, Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IST48021.2019.9010164

@inproceedings{755a071139884c5d9727fdcf93126df9,

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.",

keywords = "demodulation, Field Programmable Gate Arrays (FPGA), temporal resolution, Tomography, Wavelength Modulation Spectroscopy (WMS)",

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

year = "2020",

month = feb,

day = "27",

doi = "10.1109/IST48021.2019.9010164",

language = "English",

series = "IST 2019 - IEEE International Conference on Imaging Systems and Techniques, Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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

address = "United States",

note = "2019 IEEE International Conference on Imaging Systems & Techniques, IST 2019 ; Conference date: 08-12-2019 Through 10-12-2019",

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)., 9010164, IST 2019 - IEEE International Conference on Imaging Systems and Techniques, Proceedings, Institute of Electrical and Electronics Engineers Inc., 2019 IEEE International Conference on Imaging Systems & Techniques, Abu Dhabi, United Arab Emirates, 8/12/19. https://doi.org/10.1109/IST48021.2019.9010164

A quasi-parallel DAQ scheme for wavelength modulation spectroscopy tomography. / Enemali, Godwin; Liu, Chang; Polydorides, Nick et al.
2019 IEEE International Conference on Imaging Systems and Techniques (IST). Institute of Electrical and Electronics Engineers Inc., 2020. 9010164 (IST 2019 - IEEE International Conference on Imaging Systems and Techniques, Proceedings).

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

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

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.

KW - demodulation

KW - Field Programmable Gate Arrays (FPGA)

KW - temporal resolution

KW - Tomography

KW - Wavelength Modulation Spectroscopy (WMS)

U2 - 10.1109/IST48021.2019.9010164

DO - 10.1109/IST48021.2019.9010164

M3 - Conference contribution

AN - SCOPUS:85082014671

T3 - IST 2019 - IEEE International Conference on Imaging Systems and Techniques, Proceedings

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

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2019 IEEE International Conference on Imaging Systems & Techniques

Y2 - 8 December 2019 through 10 December 2019

ER -

Enemali G, Liu C, Polydorides N, McCann H. A quasi-parallel DAQ scheme for wavelength modulation spectroscopy tomography. In 2019 IEEE International Conference on Imaging Systems and Techniques (IST). Institute of Electrical and Electronics Engineers Inc. 2020. 9010164. (IST 2019 - IEEE International Conference on Imaging Systems and Techniques, Proceedings). doi: 10.1109/IST48021.2019.9010164

A quasi-parallel DAQ scheme for wavelength modulation spectroscopy tomography

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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