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Low Pressure Drop Oxygen Flow Meter for the PLSS

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC18P1963
Agency Tracking Number: 186512
Amount: $124,994.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: H4
Solicitation Number: SBIR_18_P1
Solicitation Year: 2018
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-07-27
Award End Date (Contract End Date): 2019-02-15
Small Business Information
5455 Spine Rd, Ste ME
Boulder, CO 80301-3312
United States
DUNS: 080138735
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: Yes
Principal Investigator
 Adam Escobar
 (720) 309-8475
Business Contact
 Christine Escobar
Phone: (720) 309-8475
Research Institution

The portable life support system (PLSS) of the advanced extravehicular mobility unit (AEMU) provides the necessary environment for a crew member to operate within the space suit.  Within the PLSS, the oxygen ventilation loop provides carbon dioxide washout, gas temperature control, humidity control, and trace contaminant removal.  Historically, there have been issues with the measurement of air flow for the oxygen ventilation loop.  With the Apollo EMU, there were humidity issues with the implemented flow meter.  For the Space Shuttle/ISS EMU, the flow sensor was a flapper/microswitch combination that only measured a discrete threshold for flow.  This proposal provides an analog method to measure the continuous air flow.  This new method meets the low pressure drop requirement and allows operation beyond low earth orbit (LEO) with radiation tolerant electronics.  Per the solicitation, a prototype will be developed during phase I to verify this new technology.

* Information listed above is at the time of submission. *

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