Development of a Multi-Gas Microsensor Array for the Exploration Portable Life Support System

Development of a Multi-Gas Microsensor Array for the Exploration Portable Life Support System

The Portable Life Support System (PLSS) of the Exploration Extravehicular Mobility Unit (xEMU) requires sensors capable of measuring the major constituents of the gas stream. These major constituents include oxygen, carbon dioxide, and water vapor. The sensors must operate across a wide range of flo...

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Hauptverfasser: Makel, James, Kokoletsos, Richard, Makel, Darby, Ogilvie, Ryan, Bastami, Sepehr
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Man/System Technology And Life Support
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Kokoletsos, Richard
Makel, Darby
Ogilvie, Ryan
Bastami, Sepehr
description The Portable Life Support System (PLSS) of the Exploration Extravehicular Mobility Unit (xEMU) requires sensors capable of measuring the major constituents of the gas stream. These major constituents include oxygen, carbon dioxide, and water vapor. The sensors must operate across a wide range of flow and pressure conditions and introduce very low pressure drop in the ventilation loop. The sensors must operate with low power and occupy a small volume. This paper reports the development of a compact, low power, multi-parameter astronaut life support sensor (M-PALSS). M-PALSS consists of an array of low-power chemical microsensors for oxygen, carbon dioxide, water vapor, and pressure. M-PALSS includes custom electronics to control the sensors and is packaged in a custom housing that meets the volume and shape requirements for service in the PLSS.
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title Development of a Multi-Gas Microsensor Array for the Exploration Portable Life Support System
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