Photonic Sensor for Nondestructive Testing of Composite Overwrapped Pressure Vessels

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,934.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
NNX09CE69P
Award Id:
90766
Agency Tracking Number:
085055
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
67 East Evelyn Avenue, Suite 3, Mountain View, CA, 94041
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
928805761
Principal Investigator:
An-Dien Nguyen
Principal Investigator
(650) 965-7772
a.d.nguyen@lgrinc.com
Business Contact:
Anthony O'Keefe
CEO
(650) 965-7772
a.okeefe@lgrinc.com
Research Institution:
n/a
Abstract
Los Gatos Research proposes to develop a photonic sensor instrumentation, capable of monitoring distributed load and acoustic emission (AE) for rapid inspection of damages in composite overwrapped pressure vessels (COPV). Our novel sensor technology offers a number of advantages including sensor compactness and lightweight with multiplexing capability for load and AE for monitoring and characterizing damages in advanced composite structures and components. We achieve this by employing Bragg grating sensor arrays and using a novel interrogation technique combined with state-of-the-art AE method to detect and pinpoint composite defects in these structures. In Phase I, we will demonstrate the sensor's capability to measure loads and acoustic emission in a composite structure in comparison with conventional piezoelectric type AE sensors. In addition, we will develop a damage grading methodology to predict the presence, location, severity of damages in the COPV. In Phase II, the grating sensors, interrogation system, and diagnostic software will be integrated into an automated system, capable of measuring and correlating the load history, acoustic emission activity, and determining the severity of damages and their location in the COPV.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government