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Multifunctional Integrated Optic Sensor for Detection of Cracks and Corrosion

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
76826
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
041213
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
LOS GATOS RESEARCH
67 E EVELYN AVE STE3 Mountain View, CA 94041-1529
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2005
Title: Multifunctional Integrated Optic Sensor for Detection of Cracks and Corrosion
Agency: NASA
Contract: NNL05AA90P
Award Amount: $69,995.00
 

Abstract:

Los Gatos Research proposes to develop a new nondestructive inspection sensor system, capable of simultaneously measuring strain-based load and detecting crack, corrosion, and disbonding in inaccessible areas of aerospace structures. Our novel sensor technology offers a number of advantages including compactness, lightweight, low power consumption, and high sensitivity. We achieve this by fabricating Bragg gratings on stress-wave-sensitive polymer planar waveguides, which is capable of detecting both surface and below surface cracks and stress in aerospace structures. In Phase I, using a guided wave method we will demonstrate the polymer gratings' capability to measure strain and stress waves indicating the presence and severity of damages caused by cracks, disbonding, or corrosion in a thin metal structure, when the structure is probed by a conventional ultrasonic wave generation device. In Phase II, an integrated optic Bragg grating-based load monitoring and guided wave sensor prototype and a crack detection algorithm will be developed to provide structural health monitoring and nondestructive evaluation for spacecraft composite systems and components.

Principal Investigator:

An-Dien Nguyen
Principal Investigator
6509653459
a.d.nguyen@lgrinc.com

Business Contact:

Anthony O'Keefe
president
6509657772
a.okeefe@lgrinc.com
Small Business Information at Submission:

Los Gatos Research
67 East Evelyn Avenue, Suite 3 Mountain View, CA 94041

EIN/Tax ID: 770358688
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No