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  • 1
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    Technical Update: Johnson Space Center system using a solid electrolytic cell in a remote location to measure oxygen fugacities in CO/CO2 controlled-atmosphere furnaces (1993)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Details are given for the design and application of a (one atmosphere) redox-control system. This system differs from that given in NASA Technical Memorandum 58234 in that it uses a single solid-electrolytic cell in a remote location to measure the oxygen fugacities of multiple CO/CO2 controlled-atmosphere furnaces. This remote measurement extends the range of sample-furnace conditions that can be measured using a solid-electrolytic cell, and cuts costs by extending the life of the sensors and by minimizing the number of sensors in use. The system consists of a reference furnace and an exhaust-gas manifold. The reference furnace is designed according to the redox control system of NASA Technical Memorandum 58234, and any number of CO/CO2 controlled-atmosphere furnaces can be attached to the exhaust-gas manifold. Using the manifold, the exhaust gas from individual CO/CO2 controlled atmosphere furnaces can be diverted through the reference furnace, where a solid-electrolyte cell is used to read the ambient oxygen fugacity. The oxygen fugacity measured in the reference furnace can then be used to calculate the oxygen fugacity in the individual CO/CO2 controlled-atmosphere furnace. A BASIC computer program was developed to expedite this calculation.
    Keywords: SPACE SCIENCES (GENERAL)
    Type: NASA-TM-104774 , S-727 , NAS 1.15:104774
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Space Station Planetology Experiments (SSPEX) (1986)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A meeting of 50 planetary scientists considered the uses of the Space Station to support experiments in their various disciplines. Abstracts (28) present concepts for impact and aeolian processes, particle formation and interaction, and other planetary science experiments. Summaries of the rationale, hardware concepts, accomodations, and recommendations are included.
    Keywords: SPACE SCIENCES (GENERAL)
    Type: NASA-CP-2424 , S-554 , NAS 1.55:2424 , Jun 20, 1985 - Jun 22, 1985; Flagstaff, AZ; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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