Cis-Lunar
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Cis-Lunar was a company specializing in the production of automatic, computer-controlled closed-circuit rebreathers.
History
Originally, Cis-Lunar aimed to develop spacesuit kits, but the dot com crash in the early 2000s hindered their ability to finance the mass production of the MK5 rebreather, which featured designs intended to mitigate system and mission failures.[1]
In 2005, the Swedish diving equipment manufacturer Poseidon acquired Cis-Lunar's technology. Bill Stone, founder of Stone Aerospace, was appointed to lead a team in designing a new closed-circuit rebreather under Poseidon.[2][3]
The Cis-Lunar Mark VI rebreather had changes, such as discarding the customary three oxygen sensors and their voting logic in favor of a primary oxygen sensor with constant auto-cell validation and auto-calibration through the entire dive envelope, with a secondary oxygen sensor for redundancy. The Mark VI also uses a four-computer design that correlates data over its digital communications network to its controlling resource algorithm to monitor such data as exact values, gas cylinder low or excessive consumption or metabolic rates, sensor values, privative sensor values, and calculated response data values.[citation needed]
The Cis-Lunar Mark VI rebreather introduced significant modifications, including replacing the traditional three oxygen sensors and their voting logic with a primary oxygen sensor that performs continuous auto-cell validation and auto-calibration throughout the dive, complemented by a secondary oxygen sensor for backup. Additionally, the Mark VI incorporated a four-computer system that integrates data across a digital network, using a controlling algorithm to monitor various parameters such as precise measurements, gas consumption rates, sensor readings, and calculated responses.[citation needed]
Bill Stone of Cis-Lunar and Richard Pyle discussed the Mark VI's design principles and operation in an interview with Scuba Magazine.[4]
Etymology
The word cis-lunar came from Latin and means "on this side of the Moon" or "not beyond the Moon".[5]
See also
- Primary life support system – Life support device for a space suit
- Shackleton Energy Company – Company formed to develop equipment and technologies for mining the Moon
References
- ^ Stone, WC (1987). "Design of fully redundant autonomous life support systems". In: Mitchell, CT (eds.) Diving for Science 86. Proceedings of the American Academy of Underwater Sciences Sixth Annual Scientific Diving Symposium. Held October 31 - November 3, 1986 in Tallahassee, Florida, USA. American Academy of Underwater Sciences. Archived from the original on July 27, 2011. Retrieved 2011-03-12.
{{cite journal}}: CS1 maint: unfit URL (link) - ^ "Poseidon MKVI". Poseidon. Archived from the original on 2012-03-04. Retrieved 2012-03-29.
- ^ "Stone Aerospace - History". Stone Aerospace/PSC, Inc. Archived from the original on 2013-01-05. Retrieved 2009-03-23.
- ^ "HD Interview with Bill Stone of Cis-Lunar Demonstrating Mark 6 & Powering Up Displays". Retrieved 2009-03-23. (may require registration)
- ^ "Johns Hopkins APL Engages Government and Industry on Critical Lunar Space Issues | Johns Hopkins University Applied Physics Laboratory". www.jhuapl.edu. Retrieved 2023-11-22.
External links
- http://www.nwdesigns.com/rebreathers/CisLunar.htm (Mk VP images)
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