Wireless Sensor Enabling Self Calibration and Condition Based Maintenance

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N65538-06-M-0082
Agency Tracking Number: N053-159-0258
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2006
Solicitation Year: 2005
Solicitation Topic Code: N05-159
Solicitation Number: 2005.3
Small Business Information
2927 Club Oak, Fayetteville, AR, 72701
DUNS: 199439345
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Joseph Mallon
 Chief Executive Officer
 (650) 324-1645
Business Contact
 Ronald Foster
Title: Chief Technical Officer
Phone: (479) 236-0494
Email: rbfoster@arisetek.com
Research Institution
This SBIR proposal is for development of a ruggedized pressure sensor having capability to monitor its' own health, recalibrate if necessary, and wirelessly report its' status along with measured values. The proposed sensor substantially reduces the need for re-calibration by employing aerospace-proven silicon MEMS technology and digital compensation circuitry. Ongoing comparisons of redundant sensors will provide diagnostic information on hard failures and identify soft failures requiring calibration. Self calibration is accomplished without requiring service interruption to operate isolation valves by employing a simple, cost-effective Simulated Pressure Generator (SPG). For slope calibration, a short duration positive pressure pulse is applied to determine sensor sensitivity. For null calibration, the SPG provides a negative pressure pulse which, coupled with composite sensor technology, allows the sensing element to be momentarily decoupled from the applied pressure. An algorithm will be applied to self calibrate both slope and null offset. Initial analysis confirms that a battery pack can be designed to provide standalone power for a period of two years. Phase I deliverables include prototype test results demonstrating feasibility of SPG and battery pack functionality; component and wireless design; plans for fabrication and procurement of key components; and a technology development roadmap with Phase II/III milestones.

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

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