NASA SBIR 2005 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER:05 A1.03-8545
SUBTOPIC TITLE:Aviation Security Technologies
PROPOSAL TITLE:Structural Health Monitoring Using Fiber Bragg Grating Sensor Matrix

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Intelligent Fiber Optic Systems Corporation
650 Vaqueros Avenue
Sunnyvale ,CA 94085 - 3525
(408) 328 - 8648

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Behzad    Moslehi
bm@ifos.com
650 Vaqueros Avenue
Sunnyvale, CA  94085 -3525
(408) 328 - 8648

TECHNICAL ABSTRACT (LIMIT 200 WORDS)
Fiber Bragg Grating had been identified as very important elements, especially for strain measurements in smart structures. In many applications, arrays of FBG sensors along a single fiber at multiple locations are required to collect data samples at high speed with microstrain resolution. However, the traditional approaches based spectrum scanning and Wavelength Division Multiplexing are either lacking in sampling rates due to scanning and processing speed or cost prohibiting, respectively, as the number of optical sensors increased. The technique IFOS is proposing is based on the combination of Wavelength Division Multiplexing (WDM) and Frequency Modulation (FM) techniques. In addition, IFOS will implement multi-fiber multiplexability to the present high-speed WDM systems with Space Division Multiplexing scheme to increase the number of sensor array based on fast optical switch. These approaches will have advantages over scanning systems as well as WDM based in terms of speed and the capability of multiplexing FBG sensors at lower cost. Potential implementation of proposed technique and high-speed FBG sensors in structure health monitoring and intelligent sensing will be demonstrated, in collaboration with the research team at the University of Akron.

POTENTIAL NASA COMMERCIAL APPLICATIONS (LIMIT 150 WORDS)
The proposed project has direct NASA applications in the following areas regarding aerospace vehicles and structures:
o Automated Nondestructive Evaluation for faulty structural components
o Integrated Vehicle Health Monitoring (IVHM)
o Flight control System
o Real-time autonomous sensor validity monitors
o Monitor statistical manufacturing, assembly process, and control; composite materials for internal temperature and pressure during the curing process; composite bonded repairs; sandwich structures; gun barrel; reusable launch vehicles; pressure vessels and tanks burst testing; aero propulsion flight tests
o Self-monitoring structures with alarm and abort capabilities
o Pyrotechnic test and data acquisition for shock response spectrum analysis.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (LIMIT 150 WORDS)
For aerospace vehicle health monitoring applications, this fiber sensor network will significantly increase the sensing capability as well as extend the applicability of grating-based fiber-optic sensors systems at low cost. Further applications include instrumentation for jet and Flight Control Systems, oil exploration, marine structures and nuclear power plants requiring real-time control and monitoring, and critical infrastructure monitoring for homeland security.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

TECHNOLOGY TAXONOMY MAPPING
Aircraft Engines
Airframe
Guidance, Navigation, and Control
Optical
Optical & Photonic Materials
Photonics
Structural Modeling and Tools


Form Printed on 09-19-05 13:12