Digital gain balancing technique for sensitive detection of minor gas concentrations

Sandip Pal; Paul Wright; Hugh McCann

doi:10.1109/ICECS.2008.4674989

Digital gain balancing technique for sensitive detection of minor gas concentrations

Sandip Pal, Paul Wright, Hugh McCann

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

Abstract

Ultra-sensitive detection of minor species is important in many fields. The requirement of direct online measurement of gas species in process engineering motivates fast measurements over short pathlengths. The resulting high bandwidth and low absorptions reduce the measurement Signal-to-Noise Ratio (SNR). Our target is to detect CO in engine exhaust with sensitivity of the order of 0.05ppm-m at several kHz. In this paper, a novel electronic scheme is discussed and presented with simulation results. A generic approach is followed, to use it with either a pulsed or a continuous wave (CW) laser source. A detailed noise analysis is presented for improved understanding of the SNR of the overall scheme. © 2008 IEEE.

Original language	English
Title of host publication	Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008\|
Pages	858-861
Number of pages	3
DOIs	https://doi.org/10.1109/ICECS.2008.4674989
Publication status	Published - 2008
Event	15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008 - St. Julian's Duration: 1 Jul 2008 → …

Conference

Conference	15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008
City	St. Julian's
Period	1/07/08 → …

Keywords

engines
exhaust systems
gas sensors

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10.1109/ICECS.2008.4674989

Cite this

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title = "Digital gain balancing technique for sensitive detection of minor gas concentrations",

abstract = "Ultra-sensitive detection of minor species is important in many fields. The requirement of direct online measurement of gas species in process engineering motivates fast measurements over short pathlengths. The resulting high bandwidth and low absorptions reduce the measurement Signal-to-Noise Ratio (SNR). Our target is to detect CO in engine exhaust with sensitivity of the order of 0.05ppm-m at several kHz. In this paper, a novel electronic scheme is discussed and presented with simulation results. A generic approach is followed, to use it with either a pulsed or a continuous wave (CW) laser source. A detailed noise analysis is presented for improved understanding of the SNR of the overall scheme. {\textcopyright} 2008 IEEE.",

keywords = "engines, exhaust systems, gas sensors",

author = "Sandip Pal and Paul Wright and Hugh McCann",

note = "digital gain balancing;sensitive detection;minor gas concentrations;direct online measurement;signal-to-noise ratio;engine exhaust;electronic scheme;pulsed wave laser source;continuous wave laser source;; 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008 ; Conference date: 01-07-2008",

year = "2008",

doi = "10.1109/ICECS.2008.4674989",

language = "English",

isbn = "9781424421824",

pages = "858--861",

booktitle = "Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008|",

}

Pal, S, Wright, P & McCann, H 2008, Digital gain balancing technique for sensitive detection of minor gas concentrations. in Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008|. pp. 858-861, 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008, St. Julian's, 1/07/08. https://doi.org/10.1109/ICECS.2008.4674989

TY - GEN

T1 - Digital gain balancing technique for sensitive detection of minor gas concentrations

AU - Pal, Sandip

AU - Wright, Paul

AU - McCann, Hugh

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PY - 2008

Y1 - 2008

N2 - Ultra-sensitive detection of minor species is important in many fields. The requirement of direct online measurement of gas species in process engineering motivates fast measurements over short pathlengths. The resulting high bandwidth and low absorptions reduce the measurement Signal-to-Noise Ratio (SNR). Our target is to detect CO in engine exhaust with sensitivity of the order of 0.05ppm-m at several kHz. In this paper, a novel electronic scheme is discussed and presented with simulation results. A generic approach is followed, to use it with either a pulsed or a continuous wave (CW) laser source. A detailed noise analysis is presented for improved understanding of the SNR of the overall scheme. © 2008 IEEE.

AB - Ultra-sensitive detection of minor species is important in many fields. The requirement of direct online measurement of gas species in process engineering motivates fast measurements over short pathlengths. The resulting high bandwidth and low absorptions reduce the measurement Signal-to-Noise Ratio (SNR). Our target is to detect CO in engine exhaust with sensitivity of the order of 0.05ppm-m at several kHz. In this paper, a novel electronic scheme is discussed and presented with simulation results. A generic approach is followed, to use it with either a pulsed or a continuous wave (CW) laser source. A detailed noise analysis is presented for improved understanding of the SNR of the overall scheme. © 2008 IEEE.

KW - engines

KW - exhaust systems

KW - gas sensors

U2 - 10.1109/ICECS.2008.4674989

DO - 10.1109/ICECS.2008.4674989

M3 - Conference contribution

SN - 9781424421824

SP - 858

EP - 861

BT - Proceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008|

T2 - 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008

Y2 - 1 July 2008

ER -

Digital gain balancing technique for sensitive detection of minor gas concentrations

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