A Propellant Mass Gauge

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNM05AA58C
Agency Tracking Number: 041774
Amount: $69,210.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2004
Solicitation Topic Code: X6.05
Solicitation Number: N/A
Small Business Information
641 SE Central Parkway, Stuart, FL, 34994-0000
DUNS: 96772
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 John Justak
 Principal Investigator
 (772) 283-0253
 jjustak@advancedtg.com
Business Contact
 John Justak
Title: Business Official
Phone: (772) 283-0253
Email: jjustak@advancedtg.com
Research Institution
N/A
Abstract
Advanced Technologies Group, Inc. proposes the development of a Liquid-Oxygen Mass Gauge, (LMG) for In-Space cryogenic storage capable of continuous monitoring of liquid quantities to better than 1% accuracy. The proposed sensor builds on previous liquid hydrogen sensor development successes and patents. It can be utilized to measure cryogenic propellants, and sub-critical cryogenic fluids in use on a wide range of space applications and in ground applications to monitor fluids ranging from liquid oxygen to MMH and N2O4. The LMG can also indicate the presence of contaminants such as nitrogen used to purge the system. The current methods use either wire resistance measurements, capacitance or point sensors, combined with pressure and temperature measurements. The LMG will be lighter, require less energy to operate, and provide less heat leak than existing technologies. Current techniques will not function correctly in boiling or stratified liquid cryogens or in reduced gravity. During phase I, Proof-of Concept experiments will be performed with liquid oxygen. Commercial applications in the home health care industry have been identified.

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

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