Volume Sensor for Flexible Fluid Reservoirs in Microgravity

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC18C0223
Agency Tracking Number: 170161
Amount: $747,182.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: T6
Solicitation Number: STTR_17_P2
Solicitation Year: 2017
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-09-12
Award End Date (Contract End Date): 2020-09-11
Small Business Information
16 Great Hollow Road, Hanover, NH, 03755-3116
DUNS: 072021041
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Marc Ramsey
 (603) 643-3800
Business Contact
 Sheryl Belanger
Title: Contracts Manager
Phone: (603) 643-3800
Email: contractsmgr@creare.com
Research Institution
 Dartmouth College
 207 Parkhurst Hall
Hanover, NH, 00000-0000
 Federally funded R&D center (FFRDC)

The Advanced Space Suit carries consumable cooling water maintained at ambient pressure within a soft-walled, flexible reservoir. To ensure uninterrupted thermal control it is critical to monitor the volume of water remaining, but no known sensor is suitable for this task. Existing measurement techniques are unacceptably sensitive to the motion and varying geometry of the reservoir in microgravity, or to electromagnetic interference within the suit environment. We have developed a simple, compact, low power sensor that accurately measures the volume of fluid in any soft-walled bladder. Our innovative sensing technique will provide an accurate measurement that is insensitive to gravity, the motion and geometry of the reservoir, the presence of air pockets, and electromagnetic interference. We will develop a fully integrated sensor system suitable for use on the Advanced Space Suit and perform functional validation and spaceflight qualification testing.

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

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