NASA STTR 2006 Solicitation


PROPOSAL NUMBER: 06-2 T7.01-9996
RESEARCH SUBTOPIC TITLE: Non-Destructive Evaluation and Structural Health Monitoring
PROPOSAL TITLE: Microwave Detection of Laser Ultrasonic for Non-Destructive Testing

NAME: Bossa Nova Technologies LLC NAME: University of California, Los Angeles
STREET: 606 B Venice Blvd. STREET: 405 Hilgard Avenue
CITY: Venice CITY: Los Angeles
STATE/ZIP: CA  90291 - 4863 STATE/ZIP: CA  90095 - 9000
PHONE: (310) 577-8113 PHONE: (310) 206-1024

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Sebastien Breugnot
606 B Venice Blvd
Venice, CA 90291 - 4863
(310) 577-8113

Expected Technology Readiness Level (TRL) upon completion of contract:

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
In this proposal, we describe a program to develop a high-performance, cost-effective and robust microwave receiver prototype for multi-purpose Non-Destructive Evaluation (NDE). Currently, NDE of space transportation vehicles is primarily carried out on the ground, between missions. For future space missions, as duration and frequency increases, more inspection will need to be performed in space in order to monitor the aging process of the structure and to insure its integrity. For this purpose, NDE equipment that is compact, lightweight, easily operated by human with limited mobility or robot, and that exhibits low power consumption is required. Furthermore, in order to minimize the quantity of embarked equipment, the inspection equipment must be able to perform as many different inspection tasks as possible. Our innovative receiver is based on the integration of a microwave interferometer coupled with a pulsed laser to generate the ultrasound. . Based on the results obtained during Phase 1, we strongly think that we will be able to overcome the limitation generally associated with classical optical receiver: 1) Inability to work in factory environment where thermal, mechanical and optical propagation (fumes, water drops,..) perturbations are present; 2) Reduction in sensitivity caused by the speckle nature of the light reflected from rough surfaces; 3) High system cost due the price of the probe lasers, optics and engineering to develop an optical system working in a harsh environment (fumes, water drops, strong mechanical vibrationÂ…) and 4) high maintenance cost (Lasers and optics need to be checked and re-aligned frequently). Our proposed approach will lead to a cost-effective prototype with good sensitivity and performances in industrial environment.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The primarily target is the NDE during space flight, but it will also be applicable to on-the-ground NDE. Potential NASA applications covers a variety of NDE inspection needs, including the detection of subsurface inclusions and surface breaking cracks, the inspection of wiring and detection of cracks in the insulation, characterization of coating materials and bonding properties. Moreover, there is some potential application for the detection of corrosion under the shuttle thermal protection system without removing the tile.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Potential non-NASA commercial applications include ground based aircraft and spacecraft inspection, the inspection and characterization of thin films and coatings, residual stress measurement, fatigue crack detection, and the inspection of metallic and composite plates. Remote non-destructive testing where the cost of the system is critical and therefore laser detection is too expensive is a strong potential market.

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Testing Facilities
Testing Requirements and Architectures

Form Generated on 01-28-08 15:27