Chip-Scale, Nanoengineered CO2 Gas Sensors for Integrated Spacesuit Monitoring

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dc.creatorChullen, Cinda
dc.creatorXie, Ting
dc.creatorThomson, Brian
dc.creatorWen, Baomei
dc.creatorRani, Asha
dc.creatorDebnath, Ratan
dc.creatorMotayed, Abhishek
dc.date.accessioned2017-07-06T17:07:29Z
dc.date.available2017-07-06T17:07:29Z
dc.date.issued2017-07-16
dc.descriptionCinda Chullen, NASA Johnson Space Center (JSC), USA
dc.descriptionTing Xie, Dept. of Elec. and Computer Eng., University of Maryland, College Park, USA
dc.descriptionBrian Thomson, N5 Sensors, Inc., USA
dc.descriptionBaomei Wen, N5 Sensors, Inc., USA
dc.descriptionAsha Rani, N5 Sensors, Inc., USA
dc.descriptionRatan Debnath, N5 Sensors, Inc., USA
dc.descriptionAbhishek Motayed, N5 Sensors, Inc., USA
dc.descriptionICES402: Extravehicular Activity: PLSS Systems
dc.descriptionThe 47th International Conference on Environmental Systems was held in South Carolina, USA on 16 July 2017 through 20 July 2017
dc.description.abstractNASA and N5 Sensors, Inc. through a STTR program are jointly developing ultra-small, low-power carbon dioxide (CO2) and oxygen (O2) gas sensors, ideally suited for integrated space suit monitoring. During extravehicular activities, it is vital to monitor the effectiveness of the Portable Life Support System (PLSS) in real-time to ensure the safety of the astronaut. Due to the unique environmental conditions within the space suit such as high humidity, large temperature swings, and operating pressure swings, measurement of key gases such as carbon dioxide relevant to astronaut’s safety and health are quite challenging. Additionally, size, weight, and power constraints on such detection devices make it impractical to use conventional sensors. Unique chip-scale, nanoengineered chemiresistive gas sensor architecture has been developed for this application, which can be operated in the typical space suit environmental conditions. Unique design combining the selective adsorption properties of the nanoclusters of metal-oxides and metals, provides selective detection of CO2 in high relative-humidity conditions. Future works will focus on sensor design refinement as well as implementation of other on-chip components for reliable operation. In addition, a fully-integrated prototype system will be developed that can be tested in a simulated environment to evaluate the figures of merit.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES_2017_51
dc.identifier.urihttp://hdl.handle.net/2346/72889
dc.language.isoeng
dc.publisher47th International Conference on Environmental Systems
dc.subjectN5 Sensors
dc.subjectcarbon dioxide
dc.subjectoxygen
dc.subjectPortable Life Support System (PLSS)
dc.subjecthumidity
dc.subjectnanoengineered
dc.subjectchemiresistive
dc.subjectsensor architecture
dc.subjectnanoclusters
dc.titleChip-Scale, Nanoengineered CO2 Gas Sensors for Integrated Spacesuit Monitoringen_US
dc.typePresentation

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