Wireless, In Situ Guided Wave Structural Health Monitoring System with a Power Harvesting Rectenna

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$70,000.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
N65538-05-M-0136
Agency Tracking Number:
N051-054-0734
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
INTELLIGENT AUTOMATION, INC.
15400 Calhoun Drive, Suite 400, Rockville, MD, 20855
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
161911532
Principal Investigator:
George Zhao
Research Engineer
(301) 294-5232
xzhao@i-a-i.com
Business Contact:
Mark James
Contracts and Proposals Manager
(301) 294-5221
mjames@i-a-i.com
Research Institution:
n/a
Abstract
Structural integrity is a vital issue for mission success. Various defects such as metal cracks, corrosion, composite fiber breakage and delamination at critical loading areas, if not detected and repaired in time, may lead to a catastrophic system failure. Traditional inspection methods are limited to a point-by-point manner and very time consuming. Erection of scaffolding or disassembly of the structures is often needed to inspect the interior and inaccessible components. We propose a wireless in-situ guided wave health monitoring system. It consists of very small, low cost guided wave leave-in-place health monitoring sensors known as piezo-disks, an innovative Correlation Analysis Technique (CAT) for fast defect sizing and localization, a miniaturized local computing device with on-board pulsing, multi-channel data acquisition and processing capabilities, and a conformal microwave rectenna for wireless powering the in-situ system for remote monitoring. The envisioned system can inspect a relatively large area, instantaneously provide reliable and quantitative data such as defect location and severity levels; minimize and eventually eliminate the need for structural disassembly, and be able to communicate wirelessly and remotely to the maintenance personnel. The projected total cost of this system will be less than $3000.

* information listed above is at the time of submission.

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