Development and Measurements of a Mid-Infrared Multi-Gas Sensor System for CO, CO2 and CH4 Detection

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dc.citation.articleNumber2221
dc.citation.issueNumber10
dc.citation.journalTitleSensors
dc.citation.volumeNumber17
dc.contributor.authorDong, Ming
dc.contributor.authorZheng, Chuantao
dc.contributor.authorMiao, Shuzhuo
dc.contributor.authorZhang, Yu
dc.contributor.authorDu, Qiaoling
dc.contributor.authorWang, Yiding
dc.contributor.authorTittel, Frank K.
dc.date.accessioned2017-10-10T21:24:53Z
dc.date.available2017-10-10T21:24:53Z
dc.date.issued2017
dc.description.abstractA multi-gas sensor system was developed that uses a single broadband light source and multiple carbon monoxide (CO), carbon dioxide (CO2) and methane (CH4) pyroelectric detectors by use of the time division multiplexing (TDM) technique. A stepper motor-based rotating system and a single-reflection spherical optical mirror were designed and adopted to realize and enhance multi-gas detection. Detailed measurements under static detection mode (without rotation) and dynamic mode (with rotation) were performed to study the performance of the sensor system for the three gas species. Effects of the motor rotating period on sensor performances were also investigated and a rotation speed of 0.4π rad/s was required to obtain a stable sensing performance, corresponding to a detection period of ~10 s to realize one round of detection. Based on an Allan deviation analysis, the 1σ detection limits under static operation are 2.96, 4.54 and 2.84 parts per million in volume (ppmv) for CO, CO2 and CH4, respectively and the 1σ detection limits under dynamic operations are 8.83, 8.69 and 10.29 ppmv for the three gas species, respectively. The reported sensor has potential applications in various fields requiring CO, CO2 and CH4 detection such as in coal mines.
dc.identifier.citationDong, Ming, Zheng, Chuantao, Miao, Shuzhuo, et al.. "Development and Measurements of a Mid-Infrared Multi-Gas Sensor System for CO, CO2 and CH4 Detection." <i>Sensors,</i> 17, no. 10 (2017) MDPI: https://doi.org/10.3390/s17102221.
dc.identifier.digitalDevelopment_Measurements_Mid-Infrared_Multi-Gas_Sensor_System
dc.identifier.doihttps://doi.org/10.3390/s17102221
dc.identifier.urihttps://hdl.handle.net/1911/97782
dc.language.isoeng
dc.publisherMDPI
dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.keywordmid-infrared absorption spectroscopy
dc.subject.keywordmulti-gas detection
dc.subject.keywordgas sensor
dc.titleDevelopment and Measurements of a Mid-Infrared Multi-Gas Sensor System for CO, CO2 and CH4 Detection
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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