Open Architecture Fiber Optic Engine Monitoring System
Navy SBIR FY2006.2


Sol No.: Navy SBIR FY2006.2
Topic No.: N06-121
Topic Title: Open Architecture Fiber Optic Engine Monitoring System
Proposal No.: N062-121-0563
Firm: Luna Innovations Incorporated
1703 S Jefferson Street, SW
Suite 400
Roanoke, Virginia 24016
Contact: Matthew Palmer
Phone: (540) 769-8400
Web Site: www.lunainnovations.com
Abstract: Luna Innovations Incorporated proposes to develop a flight hardened, universal, fiber optic sensor system for the measurement of multiple physical parameters of interest. The purpose of this system is to provide an open architecture that will universally accept fiber optic sensors including those based on Extrinsic Fabry-Perot Interferometers (EFPIs) and Fiber Bragg Gratings (FBGs). Fiber optic sensors are completely EMI-immune and are an enabling technology for emerging fly-by-light flight systems. The system will be optimized for weight, volume, and power consumption appropriate to a flight environment. Special emphasis will be placed on developing the system to work with a broad range of fiber optic sensor types such that various sensors can be monitored using a single system. Part of the project will focus on developing a smart network which will minimize interconnect volume, while providing seamless network interconnectivity. During Phase I, a prototype system will be designed and a wide range of sensor variables tested with an existing development system. Sensor testing will focus on developing robust algorithms and calibration data protocols which will enhance versatility. During Phase II, Luna will work with engine and airframe OEM partners to design a system and network that is ready for flight qualification.
Benefits: The flight-hardened fiber optic readout system developed under this project has several unique features that enable it to capture the best qualities of fiber optic sensor platforms, while avoiding traditional tradeoffs. Additionally, the system will be designed to work with a broader range of sensors than competing platforms. The system utilizes all commercial off the shelf (COTS) components used in telecommunications that are readily available at low-cost and high-volumes. Therefore, this system will be highly competitive, not only with other fiber optic systems, but with conventional instrumentation systems as well. Development of this system into a turn-key instrument will enable its rapid acceptance in the aerospace industry. Luna's previous work in aerospace sensors has attracted the attention of numerous gas turbine and airframe OEMs, as well as leaders in the sensing industry, who have agreed to test prototype sensors and consult with Luna to identify a commercialization strategy. By closely collaborating with these industry principals, Luna's technology will quickly transition from the laboratory to the market place, and will be engineered to meet specific industry needs. The proposed system will help engineers optimize engine performance and more accurately assess remaining lifetime by enabling measurements not previously possible.

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