Award Data

Technology is proposed for in-service detection of airfoil and rotor defects, and of operating conditions that can accelerate them. The technology consists of deterministic signal processing algorithms that fundamentally advance spectrum analyzer technology for extracting torsional vibration signals from operating turbines. Newly patented analytical methods for constant velocity power turbines wi ...

This SBIR Phase I project aims to develop a capacitive energy storage system for UPS applications. The challenge is taken in consideration of the dielectric materials, the design of the capacitor array, and the discharge regulation in the circuit. The innovation emphasizes the development of capacitors with nanostructured dielectrics, in which the discharge process is governed by distributed rel ...

Graphite carbon electrodes have been used as the anode in recently commercialized rechargeable lithium batteries. However, the energy densities achieved to date for secondary lithium batteries have fallen far short of the theoretically attained mark. The specific energy or capacity of the Li-ion system, and for the anode process in particular, the Li intercalation efficiency, and the irreversibl ...

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There exists a need to develop and flight validate a small, lightweight, aerodynamic GPS test instrumentation package to support high speed munitions development. In order to fulfill this need, the Neptune Sciences, Inc. (NSI) team proposes to apply their expertise and experience (as recently applied to the USN Tactical Dropsonde (TDrop) program) to develop the Miniature Munitions Aerodynamic Glo ...

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The project goal is to produce an algorithm for synthesizing auditory distance which will be accurately perceived with little or no learning required. The algorithm could be added to an existing AF 30D audio system which uses headphones in a noise-reducing helmet. The approach is to combine very accurate recently developed atmospheric modeling with head-related transfer functions (HR ...

Efforts to apply active noise and vibration control commercially, while intensifying, continue to be hampered by the cost of the computers required to implement the active algorithms. Currently, the cost of wide-band control is prohibitive for lightly damped systems such as precision structures or highly reverberant acoustic spaces, even if the system has just one canceling actuator and one error ...

Wind noise in outdoor measuemetn micropnones can mask an acoustic signal. Windscreens provide some wind noise reduction; however, those typically used for outdoor applications provide noise reductions of approximately 10-15 dB. Planning Systems Incorporated (PSI) proposes to design and test a Multiple Aperture Sensor System (MASS) consisting of a microphone, a processor, and data acquisitio and ...