Real-Time Ultrasound Camera Inspection of Fasteners in Aerospace Structures

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$749,990.00
Award Year:
2004
Program:
SBIR
Phase:
Phase II
Contract:
N68335-04-C-0206
Award Id:
64799
Agency Tracking Number:
N031-0582
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1738 Elton Road, #218 Suite 218, Silver Spring, MD, 20903
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
964507834
Principal Investigator:
MarvinLasser
Chairman of the Board
(301) 431-2911
lasserm@imperiuminc.com
Business Contact:
RobertLasser
President
(301) 431-2905
blasser@imperiuminc.com
Research Institute:
n/a
Abstract
The purpose of this Phase II SBIR proposal is to develop a device capable of detecting cracks in the vicinity of fasteners in aerospace structures through the use of an ultrasound camera. During our earlier Phase I effort, we were successful in demonstrating that cracks could be imaged quickly and with high resolution using this technique. Present inspection methods employ an ultrasonic testing transducer that is slowly rotated around a fastener to develop a map of the full 360 degree region. Since a focused beam transducer is used, only a single pencil-point region is checked at a time, so the process takes minutes per fastener. These devices also require extensive training. The combination of long inspection times and high operator skill requirements limits the overall probability of detection of any cracks or flaws. Eddy current systems are effective but only for near surface anomalies. In contrast, the ultrasound camera shows deeper cracks than what eddy currents can generate. The ultrasound camera system will generate real time, high resolution images of subsurface cracks on an LCD or monitor. The low cost system will be easy to use and capable of rapid inspection, covering a fastener in well under one minute.

* information listed above is at the time of submission.

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