This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Flight Hydrogen Sensor for Use in the ISS Oxygen Generation Assembly
Technical Paper
2005-01-2870
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper provides a description of the hydrogen sensor Orbital Replacement Unit (ORU) used on the Oxygen Generation Assembly (OGA), to be operated on the International Space Station (ISS). Makel Engineering, Inc. (MEI) is providing the hydrogen sensor ORU to monitor the oxygen outlet for the presence of hydrogen. The hydrogen sensor ORU is a triple redundant design where each sensor converts raw measurements to actual hydrogen partial pressure that is reported to the OGA system controller. The signal outputs are utilized for system shutdown in the event that the hydrogen concentration in the oxygen outlet line exceeds the specified shutdown limit. Improvements have been made to the Micro-Electro-Mechanical Systems (MEMS) based sensing element, screening, and calibration process to meet OGA operating requirements. Two flight hydrogen sensor ORUs have successfully completed the acceptance test phase. This paper also describes the sensor’s performance during acceptance testing, additional tests planned to extend the operational performance calibration cycle, and integration with the OGA system.
Authors
Topic
Citation
M’Sadoques, G. and Makel, D., "Flight Hydrogen Sensor for Use in the ISS Oxygen Generation Assembly," SAE Technical Paper 2005-01-2870, 2005, https://doi.org/10.4271/2005-01-2870.Also In
References
- Hunter, G.W. Liu, C.C. Makel, D. 2001 MEMs Handbook CRC Press LLC Gad-el-Hak M.
- Hunter, G.W. Neudeck, P. G.
- Fralick, G. Makel, D. Liu, C.C. Ward, B. Wu, Q. H. Thomas, V. Hall, G. 2001 “Microfabricated Chemical Sensors For Space Health Monitoring Applications,” AIAA 2001-4689
- Seeling, E. Makel, D.
- Sensor for the ISS Oxygen Generation Assembly” SAE 2002-01-2406