Cargando…
Segment-Resolved Gas Concentration Measurements by a Time Domain Multiplexed Dual Comb Method
Locating gas concentration changes in widespread locations can be conducive to environmental atmospheric detection, gas emissions monitoring, production process control, etc. A time domain multiplexed dual-comb system for segment-resolved gas concentration measurement is reported in this work. Both...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7146138/ https://www.ncbi.nlm.nih.gov/pubmed/32168966 http://dx.doi.org/10.3390/s20061566 |
_version_ | 1783520130781675520 |
---|---|
author | Chen, Xinyi Zhang, Weipeng Zhang, Yujia Lu, Minjian Li, Yan Wei, Haoyun |
author_facet | Chen, Xinyi Zhang, Weipeng Zhang, Yujia Lu, Minjian Li, Yan Wei, Haoyun |
author_sort | Chen, Xinyi |
collection | PubMed |
description | Locating gas concentration changes in widespread locations can be conducive to environmental atmospheric detection, gas emissions monitoring, production process control, etc. A time domain multiplexed dual-comb system for segment-resolved gas concentration measurement is reported in this work. Both absorption spectra and path lengths for multiple path-segments in a target path can be derived from the time domain separated interferograms and then the equivalent gas concentrations in each segment can be retrieved separately. A benchtop experiment aiming at a target path with three path-segments of different gases has been demonstrated. The relative deviation of gas concentration retrieval is 1.08% in 1 s. Besides, additional numerical simulations prove that the crosstalk between the interference signals affects the spectrum analysis by no more than 0.1% for a kilometer-long atmospheric absorption detection. Therefore, achieving a gridded measurement of regional gas concentration in the open air can be foreseen using this method. |
format | Online Article Text |
id | pubmed-7146138 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-71461382020-04-15 Segment-Resolved Gas Concentration Measurements by a Time Domain Multiplexed Dual Comb Method Chen, Xinyi Zhang, Weipeng Zhang, Yujia Lu, Minjian Li, Yan Wei, Haoyun Sensors (Basel) Article Locating gas concentration changes in widespread locations can be conducive to environmental atmospheric detection, gas emissions monitoring, production process control, etc. A time domain multiplexed dual-comb system for segment-resolved gas concentration measurement is reported in this work. Both absorption spectra and path lengths for multiple path-segments in a target path can be derived from the time domain separated interferograms and then the equivalent gas concentrations in each segment can be retrieved separately. A benchtop experiment aiming at a target path with three path-segments of different gases has been demonstrated. The relative deviation of gas concentration retrieval is 1.08% in 1 s. Besides, additional numerical simulations prove that the crosstalk between the interference signals affects the spectrum analysis by no more than 0.1% for a kilometer-long atmospheric absorption detection. Therefore, achieving a gridded measurement of regional gas concentration in the open air can be foreseen using this method. MDPI 2020-03-11 /pmc/articles/PMC7146138/ /pubmed/32168966 http://dx.doi.org/10.3390/s20061566 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Chen, Xinyi Zhang, Weipeng Zhang, Yujia Lu, Minjian Li, Yan Wei, Haoyun Segment-Resolved Gas Concentration Measurements by a Time Domain Multiplexed Dual Comb Method |
title | Segment-Resolved Gas Concentration Measurements by a Time Domain Multiplexed Dual Comb Method |
title_full | Segment-Resolved Gas Concentration Measurements by a Time Domain Multiplexed Dual Comb Method |
title_fullStr | Segment-Resolved Gas Concentration Measurements by a Time Domain Multiplexed Dual Comb Method |
title_full_unstemmed | Segment-Resolved Gas Concentration Measurements by a Time Domain Multiplexed Dual Comb Method |
title_short | Segment-Resolved Gas Concentration Measurements by a Time Domain Multiplexed Dual Comb Method |
title_sort | segment-resolved gas concentration measurements by a time domain multiplexed dual comb method |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7146138/ https://www.ncbi.nlm.nih.gov/pubmed/32168966 http://dx.doi.org/10.3390/s20061566 |
work_keys_str_mv | AT chenxinyi segmentresolvedgasconcentrationmeasurementsbyatimedomainmultiplexeddualcombmethod AT zhangweipeng segmentresolvedgasconcentrationmeasurementsbyatimedomainmultiplexeddualcombmethod AT zhangyujia segmentresolvedgasconcentrationmeasurementsbyatimedomainmultiplexeddualcombmethod AT luminjian segmentresolvedgasconcentrationmeasurementsbyatimedomainmultiplexeddualcombmethod AT liyan segmentresolvedgasconcentrationmeasurementsbyatimedomainmultiplexeddualcombmethod AT weihaoyun segmentresolvedgasconcentrationmeasurementsbyatimedomainmultiplexeddualcombmethod |