Design and Evaluation of a Miniaturized Non-Resonant Photoacoustic CO2 Gas Sensor with Integrated Electronics

Nan Zhang; Ananya Srivastava; Xiaolin Li; Yuanchun Li; Zhenyue Zhou; Achim Bittner; Xiaofeng Zhou; Alfons Dehe

doi:10.1109/SENSORS56945.2023.10325246

Design and Evaluation of a Miniaturized Non-Resonant Photoacoustic CO₂ Gas Sensor with Integrated Electronics

Nan Zhang^*
, Ananya Srivastava^*
, Xiaolin Li
, Yuanchun Li
, Zhenyue Zhou
, Achim Bittner
, Xiaofeng Zhou
, Alfons Dehe

^*Corresponding author for this work

School of Communication and Electronic Engineering

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

4 Scopus citations

Abstract

This paper presents a miniaturized non-resonant photoacoustic CO₂gas sensor with integrated electronics. The photoacoustic sensor (PAS) consists of a black body IR emitter, an appropriate optical filter, and a highly sensitive microphone, which converts the generated acoustic waves to electrical signals. The integrated electronics unit facilitates a standalone PAS sensor system, controls and powers the system components, and processes the electrical signals to provide a corresponding CO₂gas concentration. The performance of the developed CO₂PAS is evaluated and characterized. The measurements are done in the range of 0-9000 ppm. A sensitivity of 0.074 μV/ppm is achieved in the concentration range of 0-1537 ppm. For such a miniaturized non-resonant PAS sensor, the theoretical limit of detection (LOD) reaches 2.2 ppm for a sampling time of 330 seconds. Considering the cost, size, and performance, this sensor demonstrates the considerable potential for accurate and reliable indoor air quality monitoring.

Original language	English
Title of host publication	2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798350303872
DOIs	https://doi.org/10.1109/SENSORS56945.2023.10325246
State	Published - 2023
Event	2023 IEEE SENSORS, SENSORS 2023 - Vienna, Austria Duration: 29 Oct 2023 → 1 Nov 2023

Publication series

Name	Proceedings of IEEE Sensors
ISSN (Print)	1930-0395
ISSN (Electronic)	2168-9229

Conference

Conference	2023 IEEE SENSORS, SENSORS 2023
Country/Territory	Austria
City	Vienna
Period	29/10/23 → 1/11/23

Keywords

CO concentration measurements
Gas sensor
Miniaturized PAS
Photoacoustic

Access to Document

10.1109/SENSORS56945.2023.10325246

Cite this

Zhang, N., Srivastava, A., Li, X., Li, Y., Zhou, Z., Bittner, A., Zhou, X., & Dehe, A. (2023). Design and Evaluation of a Miniaturized Non-Resonant Photoacoustic CO₂ Gas Sensor with Integrated Electronics. In 2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings (Proceedings of IEEE Sensors). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SENSORS56945.2023.10325246

@inproceedings{70746c33ec09427b84fc34ef039c11fa,

title = "Design and Evaluation of a Miniaturized Non-Resonant Photoacoustic CO2 Gas Sensor with Integrated Electronics",

abstract = "This paper presents a miniaturized non-resonant photoacoustic CO2gas sensor with integrated electronics. The photoacoustic sensor (PAS) consists of a black body IR emitter, an appropriate optical filter, and a highly sensitive microphone, which converts the generated acoustic waves to electrical signals. The integrated electronics unit facilitates a standalone PAS sensor system, controls and powers the system components, and processes the electrical signals to provide a corresponding CO2gas concentration. The performance of the developed CO2PAS is evaluated and characterized. The measurements are done in the range of 0-9000 ppm. A sensitivity of 0.074 μV/ppm is achieved in the concentration range of 0-1537 ppm. For such a miniaturized non-resonant PAS sensor, the theoretical limit of detection (LOD) reaches 2.2 ppm for a sampling time of 330 seconds. Considering the cost, size, and performance, this sensor demonstrates the considerable potential for accurate and reliable indoor air quality monitoring.",

keywords = "CO concentration measurements, Gas sensor, Miniaturized PAS, Photoacoustic",

author = "Nan Zhang and Ananya Srivastava and Xiaolin Li and Yuanchun Li and Zhenyue Zhou and Achim Bittner and Xiaofeng Zhou and Alfons Dehe",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE SENSORS, SENSORS 2023 ; Conference date: 29-10-2023 Through 01-11-2023",

year = "2023",

doi = "10.1109/SENSORS56945.2023.10325246",

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series = "Proceedings of IEEE Sensors",

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Zhang, N, Srivastava, A, Li, X, Li, Y, Zhou, Z, Bittner, A, Zhou, X & Dehe, A 2023, Design and Evaluation of a Miniaturized Non-Resonant Photoacoustic CO₂ Gas Sensor with Integrated Electronics. in 2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings. Proceedings of IEEE Sensors, Institute of Electrical and Electronics Engineers Inc., 2023 IEEE SENSORS, SENSORS 2023, Vienna, Austria, 29/10/23. https://doi.org/10.1109/SENSORS56945.2023.10325246

Design and Evaluation of a Miniaturized Non-Resonant Photoacoustic CO₂ Gas Sensor with Integrated Electronics. / Zhang, Nan; Srivastava, Ananya; Li, Xiaolin et al.
2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. (Proceedings of IEEE Sensors).

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

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AU - Srivastava, Ananya

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AU - Zhou, Zhenyue

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AU - Dehe, Alfons

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N2 - This paper presents a miniaturized non-resonant photoacoustic CO2gas sensor with integrated electronics. The photoacoustic sensor (PAS) consists of a black body IR emitter, an appropriate optical filter, and a highly sensitive microphone, which converts the generated acoustic waves to electrical signals. The integrated electronics unit facilitates a standalone PAS sensor system, controls and powers the system components, and processes the electrical signals to provide a corresponding CO2gas concentration. The performance of the developed CO2PAS is evaluated and characterized. The measurements are done in the range of 0-9000 ppm. A sensitivity of 0.074 μV/ppm is achieved in the concentration range of 0-1537 ppm. For such a miniaturized non-resonant PAS sensor, the theoretical limit of detection (LOD) reaches 2.2 ppm for a sampling time of 330 seconds. Considering the cost, size, and performance, this sensor demonstrates the considerable potential for accurate and reliable indoor air quality monitoring.

AB - This paper presents a miniaturized non-resonant photoacoustic CO2gas sensor with integrated electronics. The photoacoustic sensor (PAS) consists of a black body IR emitter, an appropriate optical filter, and a highly sensitive microphone, which converts the generated acoustic waves to electrical signals. The integrated electronics unit facilitates a standalone PAS sensor system, controls and powers the system components, and processes the electrical signals to provide a corresponding CO2gas concentration. The performance of the developed CO2PAS is evaluated and characterized. The measurements are done in the range of 0-9000 ppm. A sensitivity of 0.074 μV/ppm is achieved in the concentration range of 0-1537 ppm. For such a miniaturized non-resonant PAS sensor, the theoretical limit of detection (LOD) reaches 2.2 ppm for a sampling time of 330 seconds. Considering the cost, size, and performance, this sensor demonstrates the considerable potential for accurate and reliable indoor air quality monitoring.

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