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Traveling Sensor for Ceramic Fabric Cumulative Moisture Exposure, with Portable Dielectric Spectroscopy Instrument

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-12-C-0044
Agency Tracking Number: N112-087-0856
Amount: $79,951.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N112-087
Solicitation Number: 2011.2
Solicitation Year: 2011
Award Year: 2012
Award Start Date (Proposal Award Date): 2011-10-13
Award End Date (Contract End Date): N/A
Small Business Information
110-1 Clematis Avenue
Waltham, MA -
United States
DUNS: 018791827
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Yanko Sheiretov
 Vice President, Product D
 (781) 642-9666
Business Contact
 Joni Hatem
Title: Sr. Vice President
Phone: (781) 642-9666
Research Institution

The proposed program will develop dielectric spectroscopy methods for monitoring the cumulative moisture exposure and absorption for coated ceramic fabric during storage and handling. This will be accomplished with a traveling passive sensor stored with the fabric, implemented as an Interdigitated Electrode Dielectrometer (IDED) in contact with a palette of sensitive materials. This palette may include: material highly sensitive to cumulative moisture absorption, material that closely tracks the properties of the fiber coating, materials with unchanging properties used for reference and calibration, and possibly materials to measure relative humidity and exposure to other contaminants. The passive traveling sensor will be interrogated periodically with a low cost hand-held data logger via a direct cable connection or a wireless link. The IDED will also be capable of directly measuring the dielectric properties of the fabric itself, at one or more locations. The current industry practice of using humidity threshold sensors and manual logging are highly inadequate in determining ceramic fabric damage due to moisture exposure. This new tool will therefore be valuable in preventing the manufacture of composites with compromised mechanical properties and will eliminate the cost of unnecessarily discarding undamaged fabric that may have been briefly exposed to high humidity.

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

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