Miniature Corrosion Sensor Hub to Monitor Difficult-to-Access Aircraft Structure with Complex Geometry.

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-08-C-0091
Agency Tracking Number: N073-169-0523
Amount: $79,997.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: N07-169
Solicitation Number: 2007.3
Small Business Information
MICROSTRAIN, INC.
310 Hurricane Lane, Suite 4, Williston, VT, 05495
DUNS: 161852074
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Steven Arms
 President
 (802) 862-6629
 swarms@microstrain.com
Business Contact
 Sarah Lynch
Title: Office Manager
Phone: (802) 862-6629
Email: slynch@microstrain.com
Research Institution
N/A
Abstract
Embedded wireless sensors for corrosion monitoring of critical aircraft components are needed for improved condition based maintenance and future structural health monitoring (SHM) systems. The objective of this Phase I SBIR proposal is to design, develop, and test a corrosion measurement and data collection system that can utilize multiple types of corrosion sensors. A key design criterion is that the system be extremely low power which will enable its use with energy scavenging power sources, such as vibration based energy harvesters. The basic architecture incorporates a hub which manages data collection and storage from multiple distributed remote corrosions sensing nodes (CSN’s). Communication between the hub and the CSN’s is achieved using a micro power variation of the RS-485 bus architecture, which allows for up to 256 distributed nodes. The hub incorporates high density non-volatile flash memory for data storage and utilizes an IEEE802.15.4 radio link for offloading the collected data to a remote handheld or personal computer. The CSN’s can employ any type or corrosion sensing method, including resistive, electrochemical impedance spectroscopic (EIS), and inductive techniques. Future distributed nodes could be developed that support various other structural sensors, including strain, pressure, and vibration sensors.

* information listed above is at the time of submission.

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