Advanced Techniques for Electrical Wire Fault

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-06-C-0337
Agency Tracking Number: N051-022-0993
Amount: $750,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2006
Solicitation Year: 2005
Solicitation Topic Code: N05-022
Solicitation Number: 2005.1
Small Business Information
15400 Calhoun Drive, Suite 400, Rockville, MD, 20855
DUNS: 161911532
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Eric van Doorn
 Director of Sensor Techno
 (301) 294-5229
Business Contact
 Mark James
Title: Contracts and Proposals M
Phone: (301) 294-5221
Research Institution
IAI will extend the work that we have doing in phase I and option period on Inductive Time Domain Reflectometry (ITDR), to detect and locate flaws in wiring systems. This approach merges two methods most commonly used for the inspection of conducting structures: TDR, and Eddy Current Testing (ECT). In many ways, TDR and ECT are orthogonal methods. By combining them, key advantages of both (testing at distance for TDR, and sensitivity for ECT) are retained while avoiding some of their limitations. The proposed TDR technology, which uses high speed digital signals for probing the wires, has the following improvements over state of the art: higher sensitivity to soft faults such as insulation chafing, and unambiguous localization of faults on branched wiring harnesses. The methodology of Inductive Time domain Reflectometry-ITDR (injecting signal in one wire and correlating it with reflections in the neighboring wire) has been very successful in detecting and locating faults (both hard and soft faults). Our Phase I experimental results demonstrate clearly that: (1) Induced measurements show far greater sensitivity to soft faults (insulation chafing). (2) Induced measurements can locate faults unequivocally in branched circuits by observing the reflections in adjacent wires.

* information listed above is at the time of submission.

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