Wireless Sensor Enabling Self Calibration and Condition Based Maintenance

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$70,000.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
N65538-06-M-0082
Agency Tracking Number:
N053-159-0258
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
ARISETEK, LLC
2927 Club Oak, Fayetteville, AR, 72701
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
199439345
Principal Investigator:
Joseph Mallon
Chief Executive Officer
(650) 324-1645
mallon@arisetek.com
Business Contact:
Ronald Foster
Chief Technical Officer
(479) 236-0494
rbfoster@arisetek.com
Research Institution:
n/a
Abstract
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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